Posts Tagged ‘Space Colonisation’

Astronomer Vladimir Firsoff’s Argument for Space Exploration as a Positive Alternative to War

December 2, 2019

Vladimir Firsoff was a British astronomer and the author of a series of books, not just on space and spaceflight, but also on skiing and travel. He was a staunch advocate of space exploration. At the end of his 1964 book, Exploring the Planets (London: Sidgwick & Jackson) he presents a rather unusual argument for it. He criticises the scepticism of leading astronomers of his time towards space exploration. This was after the Astronomer Royal of the time had declared that the possibility of building a vehicle that could leave the Earth’s atmosphere and enter space was ‘utter bilge’. He points out that the technology involved presented few problems, but that ordinary people had been influenced by the astronomers’ scepticism, and that there are more pressing problems on Earth. Against this he argued that humanity needed danger, excitement and sacrifice, the emotional stimulation that came from war. Space exploration could provide this and so serve as a positive alternative, a beneficial channel for these deep psychological needs. Firsoff wrote

The traditional planetary astronomy has exhausted its resources. No significant advance is possible without escape beyond the Earth’s atmosphere. The orbital observatories to come will reveal much that is now hidden about the other planets. Space travel is a short historical step ahead. The basic technical problems have been solved, and the consummation of this ancient dream is only a matter of a little effort, experiment and technical refinement. When Bleriot flew the Channel the Atlantic had already been spanned by air lines. And so today we have already landed on Mars – even Triton and Pluto have been reached.

But do we really like to have our dreams come true?

Possibly that happy extrovert the technologist has no misgivings. He sees the Solar System as an enlargement of his scope of action, and has even suggested preceding a descent on Mars by dropping a few bombs, “to study the surface” (this suggestion was widely reported in the press). Yet the astronomer does not relish the prospect of leaving his ivory tower to become a man of action. He is troubled by this unfamiliar part, and a small voice at the back of his mind whispers insidiously that his cherished theories and predictions may, after all, be false. The dislike of space travel is psychologically complex, but there is no mistaking its intensity among the profession.

The general public shares these enthusiasms  and apprehensions, more often than not without any clear reasons why. The Press (with a very capital P) feeds them with predigested mental pulp about what those ‘wonderful people’ the scientists have said or done (and not all scientists are 12 feet tall). At the same time the scientist is a ‘clever man’, and the ‘clever man’ is traditionally either a crank or a scoundrel, and why not both? Whatever we do not understand we must hate.

Of such promptings the fabric of public opinion is woven into varied patterns.

“Space flight is too expensive. We can’t afford it”… “What is the point of putting a man on the Moon? It is only a lifeless desert.”… “We must feed the backward nations, finance cancer research” (= in practice “buy a new TV set and a new care”)…

Wars are even more expensive and hugely destructive, and cars kill more people than cancer and famine put together.

And yet before 1939 Britain ruled half the world, her coffers were stuffed with gold, she also had 5 million on the dole, slums, an inadequate system of education, poverty and dejection. Came a long and terrible war, a fearful squandering of resources, the Empire was lost, and in the end of it it all the people “had never had it so good”, which for all the facility of such catch-phrases is basically true. Not in Britain alone either-look at West Germany, look at the U.S.S.R.! One half of the country devastated, cities razed to the ground, 30 million dead. BHut in Russia, too, the “people had never had it so good”.

In terms of ‘sound economics’ this does not make any sense. 

The reason is simply: ‘sound economics’ is a fraud, because Man is not an economic animal, or is so only to an extent. He needs danger, struggle, sacrifice, fear, loss, even death, to release his dormant energies, to find true companionship, and-oddly-to attain the transient condition of happiness … among or after the storm.

That German soldier who had scribbled on the wall of his hut: “Nie wieder Krieg heisst nie wieder Sieg, heisst nie wieder frei, heisst Sklaverie” (No more war means no more victory, means never free, means slavery) was a simple soul and he may have survived long enough to regret his enthusiasms among the horrors that followed. Yet the idea, distorted as it was, contained a germ of truth. For heroic endeavour, which the past enshrined as martial valour, is as much a necessity as food and drink. We must have something great to live for.

Hitler’s ‘endeavour’ was diabolical in conception and in final count idiotic, but it cannot be denied that it released prodigious energies both in Germany and among her opponents, and we are still living on the proceeds of this psychological capital.

What we need is a noble uplifting endeavour, and even if we cannot all take direct part in it, we can yet share in it through the newspapers, radio and television, as we did, say, in the epic rescue operation during the Langede mining disaster. It became a presence, everybody’s business-and I doubt if it paid in terms of £ s.d…

You will have guessed what I am going to say.

Mankind needs space flight. Let us have space ships instead of bombers, orbital stations instead of ‘nuclear devices’. The glory of this great venture could do away with war, juvenile delinquency and bank raids. It could be cheap at the price.

It is a fallacy to imagine that money spend on developing spaceflight is lost to the nation; it is only redistributed within it, and it is much better to redistribute it in the form of real wages than in unemployment relief. Besides, real wealth is not in a ledger; it is the work and the willingness to do it.

Yet if we go into space, let us do so humbly, in the spirit of cosmic piety. We know very little. We are face to face with the great unknown and gave no right to assume that we are alone in the Solar System.

No bombs on Mars, please.

For all that they are well meant and were probably true at the time, his arguments are now very dated. I think now that the majority of astronomers are probably enthusiasts for space flight and space exploration, although not all of them by any means are advocates for crewed space exploration. The Hubble Space Telescope and its successors have opened up vast and exciting new vistas and new discoveries on the universe. But astronomers are still using and building conventional observatories on Earth. Despite the vast sums given to the space programme during the ‘Space Race’, it did not solve the problems of crime or juvenile delinquency. And it was resented because of the exclusion of women and people of colour. Martin Luther King led a march of his Poor Peoples’ Party to the NASA launch site to protest against the way money was being wasted, as he saw it, on sending White men to the Moon instead of lifting the poor – mainly Black, but certainly including Whites – out of poverty. And as well as being enthused and inspired by the Moon landings, people also grew bored. Hence the early cancellation of the programme.

And people also have a right to better healthcare, an end to famine and a cure for cancer. Just as it’s also not wrong for them to want better TVs and cars.

But this isn’t an either/or situation. Some of the technology used in the development of space travel and research has also led to breakthroughs in other areas of science and medicine. Satellites, for example, are now used so much in weather forecasting that they’re simply accepted as part of the meteorologists’ tools.

But I agree with Firsoff in that space is an arena for positive adventure, struggle and heroism, and that it should be humanity’s proper outlet for these urges, rather than war and aggression. I think the problem is that space travel has yet to take off really, and involve the larger numbers of people in the exploration and colonisation space needed to make it have an obvious, conspicuous impact on everyone’s lives. There is massive public interest in space and space exploration, as shown by Prof. Brian Cox’s TV series and touring show, but I think that to have the impact Virsoff wanted people would have to feel that space was being opened up to ordinary people, or at least a wider section of the population than the elite scientists and engineers that now enjoy the privilege of ascending into Low Earth Orbit. And that means bases on the Moon, Mars and elsewhere, and the industrialisation of space.

But I think with the interest shown in the commercial exploitation of space by Jeff Bezos and Elon Musk, that might be coming. And I certainly hope, with Firsoff, that this does provide a proper avenue for the human need for danger and adventure, rather than more war and violence.

Video on Proposed Swiss Space Shuttle

October 13, 2019

This is an interesting little video from Swissinfo on YouTube about Swiss Space Systems, a company set up by engineer Pascal Jaussi, which is developing another space shuttle concept. Jaussi was inspired to become a space scientist as a child after he was given a copy of the Tintin book, Tintin on the Moon. His company’s design for the shuttle will have it taken up to 10,000 metres by a passenger jet acting as the shuttle’s first stage. The shuttle will then leave the jet, flying up to a higher altitude, where it will launch a satellite, which will then ascend to its final orbit using its own rockets. The shuttle is initially intended to be a satellite launcher, but later missions will be crewed.

Jaussi’s company does not intend to develop any new technology, but is simply trying to use and integrate already existing technology from America, France and Russia. This is aided by Switzerland’s neutral status. The American’s would understandably be extremely reluctant to give sensitive technology to the Russian the firm, which is building the engines for Jaussi’s shuttle. They’re the same as those in the Russian Soyuz rocket. The French aerospace firm Dassault is responsible for constructing the shuttle’s airframe. The company’s based in Jaussi’s home town of Payerne, in Vaud canton. He would like to build the launch complex there with another, launch complex without an accompanying crew planned for Croatia. The video also shows the shuttle’s cameras being tested in Canada. The video was posted four years ago in 2014, and states that the first test flights were planned for 2018.

This is another version of the Jet/shuttle combination initially proposed by Sanger in Germany. I’ve already blogged about British shuttle proposals using the same idea, Spacebus and Spacecab, by David Ashcroft and Patrick Collins.  The Swiss design is interesting, but 2018 was last year and the fact that we haven’t heard anything more of this fascinating project suggests that it’s experiencing difficulties. I hope that these are just a minor setback, and that we can look forward to the Swiss joining the other nations now entering a new Space Age, one that will lead to the proper exploration, industrialisation and hopefully colonisation of the solar System.

 

 

 

 

 

 

 

 

 

 

 

 

Time Travel Tale of Scientists Warning of Ecological Collapse: Gregory Benford’s ‘Timescape’

May 10, 2019

Gregory Benford, Timescape (London: Victor Gollancz 1980).

Julian, one of the great commenters on this blog, has asked me to do a review of Gregory Benford’s time machine book, Timescape. I read it a few years ago, having bought the 1996 edition, over a decade and a half after it was first published. It is just a bit dated now in its prediction of life in 1998, but still well-worth reading if you’re into physics and hard SF.

Benford, the ‘Galactic Centre’ Novels and Timescape

Gregory Benford is an American astronomer and hard SF writer. He’s probably best known for his ‘Galactic Centre’ series of novels. Set thousands of years in the future, this is about the last remnants of humanity battling for survival against a ruthless and almost overwhelmingly superior machine civilisation, the Mechs, at the centre of the Galaxy. Hard SF is the type of science fiction that tries as far as possible to keep to established scientific rules. Such as, for example, the inviolability of the rule of Relativity, so that there are no Faster Than Light drives taking humans to the stars in a matter of hours, days or months rather than years. But that doesn’t mean ruling out other scientific advances, like time travel. Several of the ‘Galactic Centre’ novels are set in an artificial environment within the Black Hole at the centre of our Galaxy, where careful engineering by alien creatures formed of pure magnetism have merged two Black Holes to form an artificial environment of warped space time, within which humans and organic aliens are able to seek sanctuary from the Mechs. The curvature of spacetime and stress cracks within it in this environment allow the inhabitants to travel backwards and forwards in time. One of the novels features the adventures of a modern human family, who are forced to flee forward in time as the Mechs invade, almost to the end of time itself.

Brief Synopsis

Timescape doesn’t go that far, and is very firmly set in the recent past, and near future according to the time it was written. It’s the tale of two scientists and their friends, Gordon Bernstein and his fellows at CalTech in 1963, and Gregory Markham, an American scientist and his friend Markham, at Cambridge Uni in 1998. Bernstein is a young graduate student, who detects strange signals from an experiment he and his fellows are running, signals that he gradually begins to realize cannot be explained as just random noise or the product of background radiation. In 1998 Markham and Renfrew are working on ways to generate tachyons, faster than light subatomic particles that will travel back in time through bombarding iridium with high energy particles. They hope that by creating such particles, they may be able to use them to send a warning to the past.

The Earth in this very near future is dying. The ecology is collapsing through a deadly bacteriological bloom that destroys vegetable and animal life. The result is global famine, poverty and social unrest, with food rationing and bands of hostile, violent beggars moving across England. Markham and Renfrew hope they can send a message to the past detailing how the disease can be fought and eradicated in order to save civilisation by preventing the catastrophe occurring in the first place.

Time Travelling Subatomic Particles from Space

The idea of using subatomic particles and quantum physics to contact the past is highly speculative, of course, but not unreasonable. Some interpretations of quantum physics suggest that information is able to move backwards through time, so that events in the future are able to determine the results of certain experiments, for example. There was also speculation in the 1990s that some subatomic particles reaching Earth from despite might be tachyons in origin. I can’t quite remember whether these were a type of neutrino or meson, but the theory was that they were produced by high energy events in space, such as supernovas. This produced tachyons, which traveled backwards in time until they decayed to become neutrinos or mesons or whatever, which were then able to be detected by scientists.

The Connecticutt College Professor’s Time Machine

Also in the 1990s came a plan by a Black professor at Connecticutt Community college to build a real, working time machine. This wouldn’t be able to transport people, just other subatomic particles back into the past. The idea was to create an Einstein-Rosen Condensate of iridium ions. An Einstein-Rosen Condensate is a strange state of matter where a plasma – an ionised gas is supercooled so that its component particles behave as a single particle. This plasma was to be whirled around in a chamber mimicking the spin of stars. Stars are so massive that as they spin, they pull the fabric of space time itself around after them. The effect has been observed around the Sun, providing confirmation of Einstein’s Theory of Relativity. It has been suggested that this effect could be used in the case of extremely massive objects, like Black Holes, to travel back in time. You simply enter the region of space being dragged around by the Black Hole, and then travel in the opposite direction to the local movement of spacetime. This should make you go back in time, it is suggested, and so you should be able to leave that area of space some time in the past, before you entered it. The professors plan worked along similar lines. Electrons would be shot into the chamber in the opposite direction to the circulation of the condensate. This should allow them to travel back into the past. If the scientists running the experiment found a larger number of electrons in the condensate than normal or otherwise explained, before they had started shooting them into it, then it would mean that the electrons had traveled there from the future. Time travel, or at least that possibility of communication between past and future, would be possible.

This obviously got very many people very excited. H.G. Wells’ grandson, who directed the ’90s version of his grand-dad’s classic, The Time Machine, appeared in a documentary telling us that the age of time travel was almost upon us. The experiment was due to be run aboard one of the space shuttles, but I think it must have been cancelled when one exploded, thus grounding the fleet and finally endings its use.

Time and the Weird World of Quantum Physics

Benford warns in his acknowledgements that

Many scientific elements in this novel are true. Others are speculative, and thus may well prove false. My aim has been to illuminate some outstanding philosophical difficulties in physics. If the reader emerges with the conviction that time represents are fundamental riddle in modern physics, this book will have served its purpose.

Which must be one of the rare occasions when a scientist writes a book to show how mysterious and incomprehensible a scientific phenomenon is, rather than how it can be grasped and understood. This famously applies to quantum physics. As one prominent scientist said of this subject, you don’t understand it, you just get used it.

Science and Society in the ’60s and ’90s

As you’d expect, there’s a lot of physics in the book, though none of its so hard that only physics graduates, let alone the late Stephen Hawking, would be the only people that understand it. And the book does an excellent job of showing what it must have been like doing physics at an advanced level in the early 1960s and the beginning of the 1980s. Gordon Bernstein, the hero of the early years, is a New York Jew, whose girlfriend, Marjorie, is a Conservative gentile. As his investigations proceed, he first believes that the signals are messages from space before coming to understand they’re from the future instead. He faces scepticism and opposition from his colleagues and academic supervisors, and risks being failed and his academic career and research terminated. as he goes on and his theories become public, he suffers from the attentions of the press and a procession of cranks, who traipse through his office door offering their own weird theories. I think this is a common experience to many astronomers and cosmologists. I can remember reading a comment by one such scientist that hardly a week went by without him receiving in the mail letters from people explaining their ‘theory of the universe’. At the same time, Bernstein’s relationship with his girlfriend also comes under pressure. His family don’t approve, and would like him to marry a nice Jewish girl instead. There are also political disagreements. Penny and her friends fully support the Vietnam War, views that aren’t shared by the liberal Bernstein. But in a twist, it’s Penny who understands that the waiters at their favourite restaurant are gay, is comfortable with that fact.

Back in Blighty in 1998, Markham’s and Renfrew’s backgrounds are solidly middle class. This is still a world where women were expected to stay home and cook, and the aristocracy still wields power and influence. A society in which entitled public school boys shout their food and alcohol choices in the local pub in Latin. It’s a world in which Markham is an outsider, and resents the privilege and condescension of the upper class Brits among which he moves.

Timescape and ’70s Fears of the End of Civilisation

Like much near-future SF, the book’s now dated. 1998 is now twenty years ago, and fortunately civilisation has not collapsed. Not yet. The book was partly a product of the sense of crisis in the 1970s, when many people really did fear the end of civilisation through industrial and social unrest and ecological collapse. It was predicted that overpopulation would result in mass famine, while the resources would run out and the Earth itself become uninhabitable through massive pollution. Fortunately, this hasn’t happened. Not yet. But there is still a real danger of global civilisation collapsing through irreversible ecological damage from climate change and pollution, and algal blooms are poisoning the water in some parts of the world. Despite it’s age, the book thus remains acutely relevant.

Social Change and the Rise of Domestic Computers

In other respects, the book as a prediction of the future hasn’t worn quite as well. The advance of feminism in the 1980s and ’90s meant that traditional gender roles were breaking down as women sought careers outside the home. By 1998 there was the expectation that both partners in a relationship would be working, and the old domestic arrangement in which women looked after children and the home and were supported by their husbands was seen as anachronistic. At the same time, he also doesn’t predict the advances in information technology that has produced the home and personal computers or mobile phones. There is, however, a machine called the Sek, which is a type of answerphone and database, if I recall correctly.

Conclusion

These differences between the book’s expectation of what the ’90s would be like and the reality actually don’t make much difference to the enjoyment of the story. Science Fiction tends not to be very good at predicting the future. If it was, then humanoid robots with a comparable level of intelligence and genuine consciousness, like Star Wars’ C3PO, would be in every home and we would already have colonies on the Moon, Mars and Earth orbit. We don’t have any of that. But we do have personal computers, the internet and mobile phones, as well as a variety of industrial machines, which weren’t predicted. Many SF novels still remain worth reading even though their predictions of the future, or the contemporary present in which they were set, are dated. These include such classics as those of H.G. Wells’, Jules Verne, John Wyndham and so on. What matters in the story and the writer’s ability to create a convincing, fascinating world, which Timescape does.

While some of its details are inaccurate, this is still a readable, gripping story with a solid base in plausible science, and whose warning about environmental decline is, horrendously, just as relevant now as it was when it was first published in 1980.

 

The Operation of Worker-Owned Companies in Martian SF

December 9, 2018

A week or so ago I put up a few passages from Kim Stanley Robinson’s Blue Mars (London: HarperCollins 1996), a science fiction book about the colonization and terraformation of the Red Planet. In Robinson’s book, on breaking away from terrestrial domination the Martians establish a constitution which makes all the companies not owned by the global Martian state or its constituent cities worker-owned cooperatives, partly modelled on the Mondragon cooperatives in Spain. On page 301 Robinson describes how Nadia, the new Martian president in the capital, Sheffield, works to transform the planet’s industries, including those formerly owned by terrestrial metanats – vast multinationals that now dominate the industries of whole countries – into the new system. Robinson writes

Nadia, however, never made it to this conference. She got caught up by affairs in Sheffield instead, mostly instituting the new economic system, which she thought important enough to keep her there. The legislature was passing the law of eco-economics, fleshing out the bones drawn up in the constitution. They directed co-ops that had existed before the revolution to help the newly independent metanat local subsidiaries to transform themselves into similar co-operative organisations. This process, called horizontalization, had very wide support, especially from the young natives, and so it was proceeding fairly smoothly. Every Martian business now had to be owned by its employees only. No co-op could exceed one thousand people; larger enterprises had to be made of co-op associations, working together. For their internal structures most of the firms chose variants of the Bogdanovist models, which themselves were based on the co-operative Basque community of Mondragon, Spain. In these firms all employees were co-owners, and they bought into their positions by paying the equivalent of about a year’s wages to the firms equity fund. This became the starter of their share in the firm, which grew every year they stayed, until it was given back to them as pension or departure payment. Councils elected from the work-force hired management, usually from outside, and this management then had the power to make executive decisions, but was subject to a yearly review by the councils. Credit and capital were obtained from central co-operative banks, or the global government’s start-up fund, or helper organisations such as Praxis and the Swiss. On the next level up, co-ops in the same industries or services wer associating for larger projects, and also sending representatives to industry guilds, which established professional practice boards, arbitration and mediation centres, and trade associations.

I can’t say I’m happy about the idea of worker managers buying their share of management with the equivalent of a year’s pay. This seems far too easy for someone to exploit to me. And I’m also not sure how practical it would be to turn all companies into co-operatives. However, we do need industrial democracy, if only to overturn the massive exploitation of working people that has gone on under Thatcherism. Under the current Thatcherite orthodoxy, wages are frozen, jobs insecure and the welfare system undermined and destroyed. A quarter of a million people have been forced to use foodbanks to save themselves from starvation, and 330,000-odd people are homeless. And the number of people dying on our streets, and the elderly in their homes due to Tory cuts in the cold weather payments, has shot up. And this has all been to give the rich tax cuts and provide employers with a cheap, cowed workforce.

Enough’s enough. We need a proper government with a proper vision that treats working people decently, with proper wages and rights at work, invigorates trade unions, restores a strong and health welfare state, builds properly affordable homes and reverses the privatization of the NHS. Only Corbyn’s Labour promises all that. And part of this promise is to put workers on the boards of all firms with over a certain number of employees.

Corbyn is the person we need to have in No.10. Not Tweezer and her gang of crooks and profiteers. Get them out, and Labour in.

‘Horizon’ with Mark Gatiss on a Crewed Mission to Mars

September 6, 2017

After the programme with Drs. Stephen Hawking, Danielle George and Christophe Galfand on BBC 2 next Monday, 11th September, discussing the colonization of Proxima B, the Beeb are also dedicating an edition of the long-running science documentary programme, Horizon, to the issue of sending humans to a nearer planet, Mars. The programme’s called ‘Mars – A Traveller’s Guide, and will be screened at 9 pm on Tuesday, 12th September 2017.. The blurb for this on page 82 of the Radio Times runs as follows

The reality of sending humans to Mars is getting so close that certain scientists think that somebody who is alive today will be the first person to set foot on the Red Planet. But where should the first explorers visit when they get there? Experts on the planet take their pick from extraordinary Martian landscapes ranging from vast plains and towering volcanos to deep valleys and underground caverns. They also consider what people will need to survive, the best place to land, how to live and even where to hunt for traces of extraterrestrial life.

There’s also another section giving more information about the programme on page by David Buthcer. This says

The first person to walk on Mars is probably alive today. And they might watch Horizon. So here’s a rough guide to Mars, the even lonelier planet, with a rundown of its finest sights, drily narrated by Mark Gatiss.

Visitors should certainly look out for the Valles Marineris, he tells us, the grandest canyon in the solar system at 10 km deep and long enough to stretch from New York to Los Angeles. Or there’s Olympus Mons, a volcano 100 times higher than any on Earth.

But getting to see them won’t be easy. One scene where an engineer describes what’s involved in landing on the planet puts the challenges in perspective. And the weather’s not great either.’

Mark Gatiss is, of course, one of the League of Gentlemen. Having escaped from Royston Vesey, a year or so ago he presented a programme on the great master of the British ghost story, M.R. James, and was one of the presenters of a series of programmes marking the 50th anniversary of the decriminalization of homosexuality in Britain a month or so ago. He is also no stranger to outer space, if only in fiction, as he’s also one of the writers of the relaunched Dr. Who.

Stephen Hawking on Why We Need to Colonise Space

September 6, 2017

Next Monday evening, 11th September 2017, on BBC 2 at 9 pm, Professor Stephen Hawking will present a programme arguing that humanity needs to colonise another world. Entitled The Search for a New Earth, the blurb for the programme on page 72 of the Radio Times runs

Physicist Stephen Hawking thinks the human species will have to populate a new planet within 100 years if it is to survive, with climate change, pollution, deforestation, pandemics and population growth making life on Earth increasingly precarious. In this programme he examines whether humans could relocate to other planets, travelling the globe to meet scientists, technologists and engineers working on the means and method.

There’s more information about the programme on page 71. This passage states that

Stephen Hawking is convinced that, if we are not to risk annihilation, humans need to leave Earth within the next 100 years and make a new home on another planet.

It sounds like sci-fi, but a planet has already been discovered “in our neighbourhood” that’s a contender: Proxima B is in the Goldilocks Zone (the narrow orbit where conditions are perfect to sustain human life), but we’d need a massive technological feat just to get us there.

Astrophysicist Danielle George and Hawking protégé Christophe Galfard explore the practicality of where and how e could create a human colony in space.

There’s also a single page feature about the programme in the Radio Times on page 31, which includes Danielle George’s replies to the following questions

Do we really need to leave Earth?

What does a new planet need to be human-friendly?

How many people will it take to set up a colony?

Stephen Hawking believes Proxima B may be the most suitable planet. Why?

How far away is Proxima B?

How long would it take to travel 4.2 light years?

Could we fit 20 years’ worth of astronaut food into a spaceship?

Dow we have the right to take over another planet?

Do you think there is the will to make this happen?

Regarding the amount of time required to journey to Proxima B, George states that using current chemical rockets it would take 250,000 years. But there is a project at Caliphornia where they are experimenting with propelling a nano probe the size of a mobile phone sim card using a laser beam. This may make it possible for such a probe to reach Proxima in 20 years.

That last sounds like a version of the old proposal to use space-based lasers to send a light sail to another star. One of the proposed missions was Starwisp, which would use solar sails to carry a 50 kilo instrument package to Alpha Centauri. The probe would reach a speed of 1/3 of the speed of light, and make the journey in something like 20 years.

The veteran hard SF writer, Larry Niven, also used the idea of laser-driven solar sails in his classic The Mote in God’s Eye. This is about the encounter between an expanding human galactic empire, and an alien race, the Moties. These are so called because their homeworld is a planet in a nebula dubbed Murchison’s Eye by humanity. The Moties are highly intelligent, but lack the Anderson Drive that has made it possible for humans to move out into the Galaxy. Instead, they have sent a vessel out on the centuries long voyage across interstellar in a ship using such a solar sail, powered by laser beam from their own system. It is the light from the laser beam which has given the Moties’ nebula its characteristic red colour.

As well as being super-intelligent, the Moties also possess between three and four arms, depending on their caste and function, and change sex throughout their life. Which makes me wonder whether the writers of the X-Files’ episode, ‘Gender Bender’, about a group of sex-changing aliens, who live an existence like the Amish had also drawn on the book for their inspiration. As well as the writers of Doctor Who when they decided that the Time Lords are also not restricted to remaining the same sex when they regenerate.

BBC 2 Programme on ’21st Century Race for Space’ Next Tuesday

August 30, 2017

Here’s news of yet another BBC programme on space exploration and science. Next Tuesday, 5th September 2017, physicist, broadcaster and massive Carl Sagan fan Dr. Brian Cox will present a programme, The 21st Century Race for Space, on BBC 2 at 9.00 in the evening, on the private companies planning to take humanity into the High Frontier. Among the scientists and engineers he interviews in the programme are Richard Branson and the founder of Amazon, Jeff Bezos. The blurb for it in the Radio Times runs

As a new age of interplanetary exploration dawns, it is private companies and their maverick owners who are planning to finance space tourism, asteroid mining and even colonies on Mars. Professor Brian Cox investigates the technical challenges that could stop these billionaires achieving their dreams and also finds out how they hope to overcome the daunting obstacles to human space travel. Sir Richard Branson is among the stargazers explaining how they plan to fly through the heavens. (p. 76).

Another piece about the programme on the previous page, page 75, by David Butcher, also adds the following

When the likes of Richard Branson or Amazon founder Jeff Bezos enthuse about space travel it’s easy to be skeptical. But when Brian Cox meets both billionaires for this engaging look at “the prospect of us becoming a space-faring civilization” he comes away convinced by their vision, their desire to push boundaries and to make sci-fi stuff happen.

And for us, it’s hard to see the various hangars and labs and prototypes and launches and not get the feeling that space tourism, mining on asteroids and trips to Mars really aren’t that far off.

Cox is a good guide, leaning towards the deeper questions implicit in the subject. Ultimate, one designer argues, space travel is about “building life insurance for the species.” Though you hope we won’t need it.

That snippet also has a photo of Cox and with the space scientist, Brian Lillo, in space suits outside a Mars Society Research Station in Utah, ‘exploring the Red Planet’.

I went to a symposium 17 years ago on space tourism at the British Interplanetary Society’s headquarters in London. There are no end of really great ideas, and very motivate, intelligent people out there planning and discussing ways to take people up into the Deep Black for their holidays. One of the scientists, reviewing previous spacecraft designs going back to the early days of spaceflight, showed how sophisticated some of these were. He made the case that we’re actually decades behind schedule in our ability to explore and commercially exploit space and its resources.

Rush Limbaugh: Evidence of Flowing Water on Mars Is Leftist NASA Plot

August 20, 2017

Here’s another right-wing gasbag, who should lose his radio show. In this clip from two years ago – 2015 – host Sam Seder of The Majority Report comments on Rush Limbaugh’s pronouncements about signs of flowing water on today’s Mars by NASA. NASA announced that they had found evidence that water still flows today on the Red Planet at the right season. The space agency states that this is a survivor from the period, 3 billion years ago, when the planet was much warmer and wetter than today, and a great ocean may have covered the entire northern hemisphere. The discovery is of immense importance in the search for possible life elsewhere in the solar system.

This is science, but it’s too much for Rush Limbaugh, who sees a conspiracy where there is none. NASA is part of the leftist plot to delude the world into believing in global warming, and this announcement, he goes on to suggest, may be part of it. He ridicules his producer, Sneedley, who was excited and enthusiastic about NASA’s announcement. Limbaugh then declares that he is a ‘big time science guy’ who gone past ‘science 101’. He then goes on to cast scorn and suspicion about the announcement. It’s part of some leftist plot being pursued by the agency, but he doesn’t quite know what yet. But it’s probably about global warming. Soon, he predicts, they’ll announce that they’ve found a graveyard.

Limbaugh’s a Republican broadcaster, who’s been a fixture of American right-wing radio since the 1980s, loudly applauding Ronald Reagan and ranting about how the ‘Leftists’ are trying to destroy his country. In the clip, Seder and his co-hosts and producers ridicule Limbaugh not only for his scientific ignorance – what, pray, is ‘Science 101?’, as well as the way he has openly sneered at and belittled his producer.

They then conclude the programme by further mocking him. They imitate Obama’s voice to declare that Islam is the one true religion. The Martians rejected this, which is why they were hit by a devastating drought. That’s why Obama is going to declare shariah law, and have a child from every White family in the mid-West sold into slavery in the Middle East.

This is to poke fun at Limbaugh, and the stupid, paranoid opinion amongst many American Republicans that Obama is a secret Muslim advancing the plans for an Islamic takeover of the US.

The clip shows much of what’s wrong with the American right’s attitude to science, their massive ignorance, which they think shows how perceptive they are, and their stupid paranoia about ‘leftists’. Which in this case, means anything and anyone, who isn’t as crazily right-wing as they are.

I’ve put up several pieces here about the possibility of life on Mars, and the use of certain genetically modified organisms to terraform the Red Planet. I know that several of the readers of this blog have science backgrounds and similar interests. I’ve put this up because I thought people might like to see just how stupid and ignorant Limbaugh, and by extension, his audience, is about this whole issue.

Firstly, as Seder points out, when NASA made the announcement they said it was about the state of Mars 3 billion years in the past. It’s nothing to do with global warming.

Absolutely correct. Planetary scientists now believe that there was a period during the early history of the solar system, when Mars was warm and wet. I think the National Geographical mentioned this when they did a piece on Mars in the 1980s or ’90s. It’s also discussed in Kim Stanley Robinson’s epic SF novel about the colonization of Mars, Red Mars.

What killed Mars was not global warming, but global cooling. Mars has no tectonic plates, and so it is theorized that the planet’s atmosphere was not renewed through releases of gases released from its rocks through geological forces. Over millions or billions of years, the atmosphere evaporated into space. The surface pressure is about 5 milibars – that of a laboratory vacuum. Without an atmospheric blanket to focus and increase the sun’s light, the planet cooled. Without atmospheric pressure to sustain it, water rapidly sublimates into vapour on the Martian surface. What water has survived is locked up in the ice caps, and may be as permafrost below the Martian surface.

Mars has never been cited as a warning of the dangers of global warming. That’s always been Venus. Venus lies closer to the Sun than Earth, and so has suffered runaway global warming as ever increasing amounts of carbon dioxide was released from its rocks. The result of this is that the planet is covered by a permanent cloud layer. Surface temperatures reach something like 400 degrees C, the rain is sulphuric acid, and its surface pressure is enough to squash a human flat. If you want an example of how different the histories of Mars and Venus are, go have a look, or read, the chapter ‘Blues for a Red Planet’ in Carl Sagan’s Cosmos. Sagan was a major believer in the threat of global warming, and in that episode of his epic science history blockbuster, explicitly drew a parallel between Mars’ fate and that of our own world, if we don’t cut carbon emissions.

As for finding a graveyard on Mars, some scientists have speculated on the possibility that we may find fossils of the creatures that may have lived on Mars, far back in ancient geologic time. There are also serious scientists, who have suggested that we should look for evidence of advanced extraterrestrial civilisations in the planets of our solar system. Our solar system lies in a part of the Galaxy, where the stars are an average of a single light year away from each other. That’s a short enough distance for an advanced civilization to make the difficult journey across interstellar space to another solar system. And the solar system is so old, about 4 billion years if not more, that it is statistically likely that intelligent life has arisen elsewhere in our Galaxy. And just as the Earth orbits the Sun, so the Sun orbits the centre of the Galaxy, taking 225 million years to complete one revolution. This is long enough for our Solar system to have come close to one of those other stars, harbouring alien life.

So signs of an extraterrestrial civilization may well exist on Mars. However, Mars has been dead for so long, that it’s unlikely that there exist any remains of an indigenous Martian civilization on the planet’s surface. In their entry ‘The Surface of Mars’, subtitled ‘Desert’, in their book Catalogue of the Universe, astronomers Paul Murdin and David A. Allen write

If once great cities stood here, they have crumbled to unrecognizable shapes. If trees bowed before moist zephyrs, they have returned to the dust whence they rose. If aircraft landed here, they too have vanished, or been buried beneath unknown depths of sand and rocks. (pp. 205-6).

Not all scientists are convinced that the features NASA suggested was evidence of flowing water were actually produced by it. Others believe that the marks on the surface may instead be produced by the release of other chemicals in liquid form from the underlying rock.

But if liquid water still flows on Mars, albeit it occasionally, not only does it augur well for the possible survival of some life, even if only primitive bacteria, but it also makes the planet more hospitable for possible colonization.

NASA’s claim to have found evidence of surface liquid water was therefore immensely exciting. And Limbaugh’s producer, Sneedley, was actually absolutely right to be excited about it. It’s his host, Limbaugh, who’s ignorant. And dangerously so.

No-one expects ordinary people to be experts on science. Science has advanced at such a rate that it’s too much for many ordinary people to keep update with scientific advances, some of which can be very arcane to laypeople.

But we do need people to be reasonable well-educated. And especially about threats to the planet, like global warming. It’s why there’s a need for good scientific writers and broadcasters to explain the issues clearly.

Limbaugh with his stupid denial of global warming, and his paranoid suspicion that NASA is part of some larger ‘left-wing’ plot, is actually doing the opposite. He’s disparaging real science and trying to keep people ignorant in order to promote his own, extreme right-wing views.

He’s also a danger on racial issues. A day or so ago I reported that Trump had cut funding for FBI and Department of Homeland Security initiatives against White racist terrorism. This included a charity, Life After Hate, that helps former Nazis leave these organisations without being attacked by their fellow stormtroopers. It’s a real danger. Matthew Collins, one of the founders and leaders of the anti-racist/ anti-religious extremism organization, Hope Not Hate, had to migrate to Australia in the 1990s after he appeared in a documentary exposing the violence of the NF and BNP. Obama had given $400,000 to the charity. He would have funded them sooner, but he was prevented from doing so by the ravings and possible denunciation by Limbaugh.

It’s debatable, however, how long Limbaugh will actually carry on. Far from being the influential Republican spokesman he thinks he is, his radio station in recent has been haemorrhaging sponsors and advertisers. His ratings have fallen to the point, where fewer people listen to him than to College radio stations with the range of only one or two miles. The only thing keeping him on air is money from Republican and similar extreme right-wing think tanks. If they pull out, he’s off the air.

Torygraph Journo’s Book on Interstellar Travel Through Artificial Black Holes

August 10, 2017

The Iron Sun: Crossing the Universe through Black Holes, Adrian Berry (London: Jonathan Cape 1977).

No, not the Iron Sky, which was a Finnish Science Fiction film that came out a few years ago, in which the Nazis secretly colonized the Moon, and fight an interplanetary war with an America governed by a female president, who bears a certain similarity to Sarah Palin. This is the Iron Sun, a book in which Telegraph journalist Adrian Berry explains his theory that it should be possible to explore space using artificial Black Holes to travel faster than light. Berry was a Fellow of the Royal Astronomical Society, a Senior Member of the British Interplanetary Society, and a member of the National Space Institute of America. According to the potted biography on the back flap of the dust jacket, he also covered two of the Moon Landings from Cape Kennedy and Houston. Along with this book, he also wrote The Next Ten Thousand Years and The Great Leap.

The latter book was published in the 1990s, and is also about interstellar travel and exploration. It’s a good book, though marred by Berry’s Libertarian politics. Towards the end of the book, he devotes an entire chapter to argue for Von Hayek’s daft and destructive economic ideas. So did a number of other space and extreme technology groups at the time. The transhumanists, the crazy people, who want to transform themselves into cyborgs, explore the Galaxy, and ultimately achieve immortality by uploading themselves into computers, were also very much into Von Hayek and Libertarianism. I have a feeling that this has gone by the way now. A friend of mine, who was also into it, told me a year or so ago that the Austrian economist is rather passe now. One of the leaders of the movement has said that Hayekian economics was just something they were into at the time, and they’re now distancing themselves from him, so that his ideas aren’t synonymous with the movement as a whole.

In this book, after taking the reader through Einstein’s Theory of Relativity and explaining what Black Holes are, Berry then advances his book’s central idea. This is that humanity will be able to use a fleet of automated Buzzard ramjets as cosmic bulldozers to create an artificial Black Hole of a particular size one light year from Earth. The Buzzard ramjet was a type of spaceship devised in the 1970s. Instead of taking its fuel with it into space, like conventional rockets and spacecraft, the ramjet would scoop up the necessary hydrogen for its nuclear fusion engines from the surrounding interstellar medium, in the same way that a high-performance ram jet sucks in the air it needs to reach supersonic velocities from the Earth’s atmosphere. It was an immensely popular idea amongst space scientists, SF fans and advocates of the human colonization of space, as it appeared a practical way of creating a spacecraft that could reach the very high speeds approaching that of light needed to cross space to the nearest stars within a few years, or tens of years, rather than centuries and millennia.

Berry believed that strong electromagnetic fields could be used to collect and push the necessary hydrogen atom ahead of the spacecraft. Once in place, the hydrogen and other gaseous material would be forced together into a single mass, until it was so large that it collapsed under its own gravity, forming a Black Hole.

It was Carl Sagan, who first suggested the possibility of using Black Holes as cosmic subways to travel across the universe faster than the speed of light. Einstein, Rosen and other scientists hypothesized that the gravity inside Black Holes was so massive, that not only did it crush matter out of existence, but it also created a wormhole through space and time to, well, elsewhere. An object, including a spaceship, could enter a Black Hole to travel through the wormhole, to exit from a White Hole somewhere else in the universe, or even in a different universe altogether.

The Black Hole would be built a light year away, as this would be a safe but accessible distance. The construction ships would be automated as they would not be able to pull back once construction of the Black Hole was underway, and would be allowed to fall into it.

Berry admits there is one problem with his scheme: no-one knows how far away, nor in what direction, the resulting wormhole would extend. He therefore argues that the first astronauts to use the new wormhole would also have their own fleet of construction vessels, in order to build another Black Hole at their destination, which would create the White Hole needed for them to return to the Solar System. The process would take about forty years.

He explains the details of his proposal in a fictitious interview. There’s also an epilogue, and three appendices, in which he gives further information on Black Holes, including the navigable apertures created by Black Holes of varying sizes.

It says something for the optimism about the future of spaceflight in the 1970s that Berry considers that we should have the capability to do all this sometime around 2050. The 1970s were the decade when it seemed almost anything was possible after the Moon Landings, and astronomers and writers like Sir Patrick Moore seriously predicted that by now we’d have bases and colonies on the Moon and Mars, holidays in space, orbital habitats at the L5 points, as suggested by Gerald O’Neill, and would be gradually expanding into the rest of the Solar System.

If only that had happened!

Despite the formation of public groups, like the Mars Society and the Space Frontier Foundation, for the colonization of space, humans so far seem stuck in Low Earth Orbit. There have been plans over the past few years for crewed missions to return to the Moon, and to Mars, but these haven’t materialized. NASA is planning an expedition to the Red Planet in the 2030s, but I’m really not confident about that every happening. And if it’s a struggle for us to get to Mars, sixty or seventy years after the Moon Landings, it’s going to be impossible for us to build a Black Hole.

Part of the problem is the difficulty of building a viable Buzzard ramjet. After the idea was proposed, someone worked out that the interstellar medium was so rarified that the vehicle would need a ramscoop 3,000 miles long to collect all the gas it would need. I’m not sure if this makes it completely impossible – after all, firms like the Hanson Trust back in the 1980s tried selling themselves to the general public with commercials telling the world that they made enough plastic chairs to go round the Earth so many times. And it might be possible to develop superlight materials for the scoop so that it would not be impossibly heavy. Such a material would similar to the mylar suggested for the solar sails for the Starwisp mission. This is a suggested mission to send a 50 kilo instrument package to Alpha Centauri in a journey lasting thirty years or so. And the construction of a space elevator, which would have to be of a light material strong enough to take the weight of cable cars and carry them tens of thousands of mile into space out of the Earth’s gravity well seems to me to present even greater problems. But even if a ramscoop of that size isn’t impossible, it would be very, very difficult and extremely expensive.

Not all scientists are convinced that it should be possible to use wormholes in this manner anyway. Philip’s Astronomy Encyclopedia state that one particular type of Black Hole, rotating Kerr Black Holes, which don’t have the singularity that eventually destroys all the matter passing through it, ‘have fascinating implications for hypothetical space travel to other universes’. (‘Black Holes, p. 57). However, the entry for ‘Wormholes’ states that, although they’re predicted by Einstein, ‘such wormholes cannot exist in reality, since the occurrence of white holes is forbidden by the second law of thermodynamics.’ (p. 440). On the other hand, Russian physicists have shown that it’s possible to create a wormhole a few light years in extent, though this would take more energy than is currently available in the universe.

I hope that it may one day be possible to construct such wormhole subway routes through the cosmos, as suggested by Sagan. I also wonder if the book may also have influenced comic writer Pat Mills in the creation of the Black Hole and White Hole bypasses for Termight – Earth thousands of years in the future – in the Nemesis the Warlock Strip in 2000 AD. This was an artificial Black Hole and its White Hole counterpart, constructed by Earth’s engineers to provide instantaneous access to space. ‘Nemesis the Warlock’ appeared about 1979, and while it’s definitely Science Fantasy, Mills actually did some reading in science as research for the comic. He said in an interview nearly four decades ago that he shocked the comic’s management because he bought a whole stack of books on science and then invoiced the comic company for them as research. He was annoyed that the attitude to comics at the time was so low, that the idea of doing basic research for them was looked upon with horror. Ah, how things changed after Frank Bellamy and ‘Dan Dare’. Bellamy’s studio for Britain’s greatest space hero, with the exception of Judge Dredd, included a model maker and researchers. Unfortunately, this was all cut away as an unnecessary expense when the Eagle changed hands. Sales had fallen, and the comic was then making a loss. Hence the decision to cut down the number of staff in the studio. But it does show the initial commitment to quality of strip’s creators, and Dare and Bellamy’s superb artwork are still admired as one of the greatest pieces of British comic art and literature.

Two ‘Super Earths’ Discovered around Nearby Star, Tau Ceti

August 10, 2017

Today’s I newspaper, for Thursday 10th August, has the news that two planets, which may be suitable for human colonization, have been found around Tau Ceti, a nearby star similar to our Sun.

The paper says on page 2

Astronomers have discovered two potentially habitable “super-Earths” orbiting a star 12 light years away. British led experts have identified four rocky planets, similar in size to Earth, in Tau Ceti’s “habitable zone” orbiting the nearest Sun-like solar system, neighbouring ours.

John Von Radowitz’s article, The Climate’s Nice 12 Light Years Away on page 5 also adds that the two ‘super-Earths’ are at the edge of Tau Ceti’s “habitable zone”, and that

British-led astronomers speculate that the system might be a potential candidate for future interstellar colonization. But there is evidence of a massive debris disc circling the star, increasing the chances of the planets being pounded by asteroids and comets.

Dr. Fabo Feng, the lead researcher from the university of Hertfordshire, said: “We’re getting tantalizingly close to observing the correct limits required for detecting Earth-like planets.

“Our detection…is a milestone in the search for Earth analogues and the understanding of the Earth’s habitability.”

The findings are to be published in ‘The Astronomical Journal’.

Philip’s Astronomy Encyclopedia (London: Philips’, 2002) states that Tau Ceti ‘is the most Sun-like of all the nearby single stars’. (‘Cetus’, p. 81), and that it is a G8-type star lying at a distance of 11.9 light years. This means its a yellow dwarf star like our Sun.

Tau Ceti is one of the stars making up the constellation Cetus, and is quite visible, unlike some of the other nearby stars, like Barnard’s Star. It’s so much like Sun that it was one of two stars, the other being Epsilon Eridani, which were the subject of Project Ozma in 1960. This was a program led by Frank Drake, using the 26 metre radio telescope at Green Bank to listen for possible signs of alien civilisations broadcasting messages along the 21 cm band. That wavelength was selected because it’s close to the wavelength occupied by the noise of cold hydrogen in space. Drake and his fellow scientists believed that it would therefore be a natural wavelength for advanced alien civilisations to use to broadcast to each other across the vast gulfs of space.

The search was, however, unsuccessful, and after a couple of months it was discontinued. Frank Drake still remains an influential figure in the Search for Extra-Terrestrial Intelligence (SETI) for his formulation of the Drake Equation, a formula which allows the number of possible alien civilisations in our Galaxy to be calculated.

The Equation has also come under attack. James E. Oberg, a NASA scientist, criticized it over thirty years ago in his article, ‘New Case Against Extraterrestrial Civilisations’ in the 1981 Yearbook of Astronomy. Part of the problem with the equation is that no-one actually knows how common Earthlike planets are, nor how likely the emergence of life is, and how like intelligent, technological life is either. According to the numbers selected, the Equation gives an answer for the number of alien civilisations in our Galaxy as anywhere from several to several million. I have a feeling Carl Sagan, one of the greatest advocates of the search for alien life, believed that there may have been around a thousand or so extraterrestrial civilisations out there in our Galaxy.

Astronomers have since found many tens, if not actually hundreds of extra-solar planets since then, some of which are rocky worlds like our own. This is very encouraging for SETI advocates and researchers, but later projects to search the sky using radio telescopes have still not found any conclusive evidence of alien intelligence.

As for missions to neighbouring stars, the costs of constructing a suitable spaceship that will get there in decades, rather than centuries or millennia, is immense. However, it has been estimated that the global economy should have grown sufficiently to make such a mission affordable by the 22nd Century A.D. Always supposing that Donald Trump and Kim Jong Un haven’t destroyed the world before then.