Sketch of American Astronomer, Space Scientist and Activist Carl Sagan

I’ve put up this sketch of Carl Sagan began he was one of the major figures in space research as well as a committed Humanist and political activist. He was also a major populariser of astronomy and science, most notably through his blockbusting TV series and its accompanying book, Cosmos. This was also notable for its soundtrack, composed by Vangelis, who also composed the music for Chariots of Fire, Blade Runner and 1492: The Conquest of Paradise. According to the blurb on Cosmos’ back cover, Sagan was

‘(t)he director of the Laboratory for Planetary Studies and David Duncan Professor of Astronomy and Space Studies at Cornell University. He played a leading role in the Mariner, Viking and Voyager expeditions to the planets, for which he received the NASA medals for Exceptional Scientific Achievement and for Distinguished Public Service, and the international astronautics prize, the Prix Galabert. He has served as Chairman of the Division for Planetary Sciences of the American Astronomical Society, as chairman of the astronomy section of the American Association for the Advancement of Science, as a President of the Planetology Section of the American Geophysical Union. For twelve years, he was Editor-in-Chief of Icarus, the leading professional journal devoted to planetary research. In addition to 400 published scientific and popular articles, Dr. Sagan (was) the author, co-author or editor of more than a dozen books, including Intelligent Life in the Universe, The Cosmic Connection, The Dragons of Eden, Murmurs of Earth and Broca’s Brain. In 1975 he received the Joseph Priestly Award “for distinguished contributions to the welfare of mankind,” and in 1978 the Pulitzer Prize for literature.’

It was Sagan who suggested that Black Holes could be used as interstellar subways so that spaceships from one part of the universe could use them to travel faster than light to another part of the cosmos connected by the wormhole passing between the Black Hole and its White Hole. He also suggested that Venus could be terraformed into a living, habitable world through the introduction of genetically engineered bacteria that would consume its toxic carbon dioxide atmosphere and replace it with breathable oxygen. He also noted that Mars had a large instability in its rotation, and that this could have resulted in its current, millions-year long period of lifelessness. But it was possible that in time its rotation would return to a more hospitable position and the planet would once more bloom into life. He was also a staunch advocate of the view that the universe was inhabited by intelligent alien civilisations and that one day we would contact them. He also wrote a later book, Pale Blue Dot, after the view of the Earth from space.

He was also a fierce opponent of what he considered to be superstition. He was one of the founders of CSICOP, the Committee for the Scientific Investigation of Claims of the Paranormal along with the stage magician James Randi. They were formed in response to the publication of Gauqelin’s research suggesting there really was a link between the star sign under which people were born and their later careers. He was alarmed by the rise of Creationism and the New Age, and expressed his fears about them in his book, The Demon Haunted World. He was afraid that this would lead to a new Dark Age in which people would wake up every morning to anxiously look through their horoscopes.

He was also greatly concerned with the environment and global warming and the threat of nuclear war. In the 1980s he also proposed the idea of nuclear winter. This was the idea that a nuclear war would send millions of tons of dust into the atmosphere, blocking out the sunlight and causing temperatures to plunge. This has since been rejected by scientists, but I have seen it suggested as one of the causes for the extinction of the dinosaurs. In this case it was the dust thrown up by the asteroid’s impact 65 million years ago that blocked out the sun’s light, after the initial holocaust caused by its impact.

During the inquiry following the Challenger disaster, Sagan claimed that it had occurred because the Shuttle was poorly designed, the result of a compromise between NASA and the military. The Shuttle was originally intended to be fully reusable and smaller. However, the armed forces insisted on it becoming larger so that it could carry military satellites into space. The result was that it was larger, and only partially reusable as it required an external tank to carry the extra fuel it needed to reach orbit. This was jettisoned after its fuel was consumed to burn up in the Earth’s atmosphere.

He also wrote the SF novel, Contact, later filmed with Jodie Foster playing the lead. This was about a female astronomer, who makes contact radio contact with aliens, a method Sagan himself strongly advocated. Following their instructions, she constructs an artificial wormhole portal that transports her across space so she can finally meet them. I remember coming across the book in the Cheltenham branch of Waterstones in the 1980s and was rather put off by its blurb. This boasted about it challenging and refuting racism, sexism and so on. All good stuff, of course, but a bit too PC for me.

Many of these themes appear in Cosmos. This was his personal view of the history of science, and while I loved it at the time, I have serious issues with some of the claims now. One of the problems is that he accepts what we were all told at school, that the Greek philosophers were scientists. He believed that if Greek science had progressed, we would have had space travel by now. The ancient Greeks were certainly responsible for laying the foundations of western science, but they were not quite scientists in the modern sense. They used deduction rather than the scientific method of induction. Deduction meant that they observed a phenomenon and then invented an explanation. In induction, devised by Francis Bacon in the 16th/17th century, the scientist observes a phenomenon, comes up with an explanation, and then devises an experiment to disprove it. If the explanation passes the test, it is tentatively accepted as true until a later observation or experiment disproves it. The ancient Greeks didn’t do much practical experimentation.

Sagan also followed the popular explanation of the evolution of the brain, in which there is a lower, animal brain with the higher faculties evolving later, so there’s a primitive reptile brain and a more advanced mammal brain. But Victorian scientists found that both types of brain structure were present in the earliest, most primitive animals. He also followed the standard, accepted narrative that the Roman Catholic church had suppressed scientific knowledge and experimentation during the Middle Ages. This has since been rejected by historians of science. To many such historians now, the Middle Ages after the 8/9th centuries were an age of innovation and discovery. Jean Gimpel’s book proposing the idea was called The Medieval Machine, after the invention of the clock, to symbolise the period’s belief in a universe governed by law, discoverable by human reason under the light of the divine. And rather than the revival of classical learning in the Renaissance leading to a new enlightened, rational order, it had the potential to do the opposite. The medieval philosophers and theologians were Aristotelians but were very aware of the flaws in Aristotelian science and had modified it over the centuries in order to conform more closely to observed reality. But the Renaissance Humanists would have dumped all this, and so we would have been back to square one with no further scientific advances than what was permitted through a rigid adherence to Aristotle’s thought.

There’s also an anti-Christian element in Cosmos too. He describes how Hypatia, the late Neoplatonist female philosopher was murdered by a group of Christian monks in the 4th century. Hypatia has symbolised for a long time to radical atheists the fundamentally anti-science, and to feminists, the misogyny in Christianity. But by this time Neoplatonism was a mixture of science and mystical speculation, forming what has been called ‘the mind’s road to God’. The real motives for her murder weren’t that she was some kind of pagan threat, but more from a power struggle between the authorities in that part of the Roman world.

Sagan is also critical of western imperialism and describes the horrors the Conquistadors inflicted on the Aztecs and other peoples of the New World. He’s right and this section is clearly a product of its time, with the rise of anti-colonial movements among the world’s indigenous peoples, the Black Civil Rights movement in the US and the horrors of the Vietnam War, as well as Reagan’s new Cold War and the threat of nuclear holocaust. But looking at this 40 years later, it’s also one-sided. Europe wasn’t the only expansionist, brutal, imperialist culture. Islam was also militaristic and expansionist, and at the time the Spaniards conquered South America, the Turkish empire was expanding and subjugating parts of Europe, while Muslim pirates were raiding the continent as far as Iceland for slaves.

It’s also dated from an archaeological standpoint. At one point Sagan discusses the Bronze Age collapse of the societies of the Ancient Near East, showing how it was characterised by a series of crises, similar to the process of the fall of other, later civilisations into Dark Ages, but that these aren’t causes in themselves. It’s Systems Analysis, which was popular at the time, but which I think has also become subsequently passe.

All that said, Sagan was right about global warming, whose devastating effects he illustrated with the example of the planet Venus. This has also suffered catastrophic heating due to its greater nearness to the Sun. This released massive amounts of carbon dioxide into the atmosphere, creating a runaway greenhouse effect so that it is now a hell planet of burning temperatures and sulphuric acid rain. He also wasn’t wrong about the threat of renewed militarism and nuclear war and was a welcome voice against Reagan’s strident belligerence.

As a science populariser, his influence has also been immense. Cosmos was a bestseller, and I think it prepared the way for other bestselling works by astronomers and scientists like Stephen Hawking’s A Brief History of Time. And I certainly was not surprised when Brian Cox, the scientist, not the actor, said in an interview in the Radio Times that he was a massive admirer of Sagan. That came across to me very strongly from his numerous TV series about space and the planets.

‘I’ Newspaper: NASA Planning Permanent Return to the Moon

Before the deep political stuff, a piece of space news. According to yesterday’s I for 11th February 2019, NASA is planning to go back to the Moon and found permanently manned bases. The article by Clark Mindock, ‘NASA wants to station humans on the Moon’ on page 23 ran

NASA is planning to send astronauts to the Moon again, but this time it wants to keep them there.

The US space agency’s administrator, Jim Bridenstine, called yesterday for “the best and brightest of American industry to help design and develop human lunar landers”, in response to what he said was a clear mandate from President Donald Trump and Congress to once again get astronauts out of Earth’s orbit.

In a post detailing Nasa’s lofty goals – to return astronauts to the Moon, and one day send them to Mars for the first time in human history – Mr Bridenstine said that the US was playing for keeps this time.

“I am thrilled to be talking once more about landing humans on the Moon,” he wrote on the Ozy website.

“To some, saying that we are returning to the Moon implies that we will be doing the same as we did 50 years ago. I want to be clear – that is not our vision.

“We are going to the Moon with innovative new technologies and systems to explore more locations across the surface than we ever thought possible. This time, when we go to the Moon, we will stay.”

Mr Bridenstine said that the ambitious plans would begin later this week, with partners from private industry and elsewhere invited to NASA headquarters in Washington DC to discuss the next generation of lunar landers.

So far, Nasa has already co-operated with nine companies to send cargo tot he Moon, with the ultimate goal being to develop landers that can take astronauts back there.

As a space fan, all I can say is that it’s about time. Way back in the 1970s and 1980s space experts and commenters, like Sir Patrick Moore, the presenter of the Sky At Night, were predicting that we’d have bases on the Moon and elsewhere in solar system by now. But that was before space budgets were drastically cut and NASA instead concentrated on the Space Shuttle. This was supposed to open space up to just about anybody who could afford the cost of a ticket and was in reasonable health. Its crews experienced 3Gs at lift-off, but this was considered to be so low that a 70-year old man could tolerate it. Unfortunately the Shuttle was massively overengineered and the Challenger disaster put the programme on hold while its causes were investigated and corrected. Even then its use remained risky, as we saw a few years ago when one disintegrated during re-entry over America and the programme was subsequently cancelled.

There were plans in the 1990s for a private, commercial return to the Moon, according to Focus Magazine, but that didn’t seem to get anywhere.

My guess is that NASA is finally getting round to putting a permanent human presence on the Moon not just because Trump fancies going back to the glory days of the Cold War space race, but because the EU and the Chinese are also planning the serious exploration of the Moon. A little while ago ESA – the European Space Agency – announced they were planning to put people on the Moon, while last week the Chinese successfully landed a probe on the Moon’s far side. The Chinese are putting such effort into their space programme that the quantum physicist and SF writer, Stephen Baxter, predicted back in the 1990s that the first person on Mars would probably be Chinese sometime in the next decade. Under Reagan, one of the big aerospace conglomerations and think tanks published a report arguing that America needed to develop its space technologies and industries, and move out onto the High Frontier, in order to secure its place as world leader. It’s likely that this is the same thinking behind this announcement by NASA.

As for exploring the next generation of lunar landers, I wonder if they’ll be able to use any data or blueprints remaining from the original lunar modules that landed Armstrong, Aldrin and co all those years ago. After the Apollo programme was cancelled, the massive Saturn 5 rockets were broken up, with the exception of those on display at the Kennedy Space Centre, and the plans destroyed. This has outraged many space scientists like John S. Lewis, the author of Mining the Sky, who compared it to the destruction of Chung He’s fleet by the Chinese eunuchs in the 14th century. Chung He was a Chinese admiral, who led a fleet of ships on an exploratory mission to the outside world, going as far as the Bight of Benin in West Africa. However, when he returned the eunuchs at the imperial court had his fleet destroyed and further exploration banned because they feared that opening the country up to foreign contact would have a destabilizing effect on its society. The result of this was that the country remained isolated and stagnated until it fell prey to foreign colonialism in the 19th century, most famously through the Opium Wars.

Hopefully NASA’s announcement will mark the beginning of a new, serious wave of interplanetary exploration which aims to put people on the Moon and other planets, as space scientists, engineers and SF fans and writers have been dreaming about and working towards since before the great German director Fritz Lang made his epic movie Die Frau im Mond (‘The Woman in the Moon’) about a German moon landing back in the 1920s.

Paintings of British Spaceplane MUSTARD

This is awesome. It’s another couple of piccies from the SF art page, 70sscifiart, and it’s one of the entries for the 18th June 2017. They’re illustrations from a book on space about the MUSTARD spaceplane, a reusable space vehicle designed in 1964 by the British Aerospace Corporation. The scientists and engineers, who designed it realised that it was wasteful and expensive to build rockets that would last only for a single mission, before being mostly discarded.

Their solution, MUSTARD, effectively consists of three spaceplanes linked together. There’s the main craft, which flies into space, and two supporting planes, which serve to provide fuel to the main craft, helping it reach orbital velocity. When their fuel was used up, they broke away from the main plane, and flew back to Earth.

I first came across the MUSTARD project in an issue of the space/ science fiction magazine New Voyager back in the early 80s. This described the project, and interviewed some of the scientists and engineers involved. I think the problem with it is that it was probably far too far ahead of its time. I can remember reading that they estimated that the vehicle would start breaking even after 50 journeys. Now, looking at the economics of the space shuttle, that’s probably acceptable today. The only way the Space Shuttle remained competitive compared to the other launch vehicles developed by the Russians, the Europeans, India, China and Japan is because its subsidized by the American government. If you left it to market forces, it’d be uncompetitive. It’s another example of the way market forces are absolutely wonderful, but only so long as they don’t hurt big business and the ‘national interest’.

There were also probably political reasons for its cancellation as well. Britain at the time was also developing its own space rocket, Black Arrow, which successfully launched a satellite into space in 1975, to date the only British satellite that’s been launched by a British rocket. At the time Britain was involved in a European project to build a space rocket, with various stages built by the French, British and Germans. All of the other stages were failures with the exception of the British, and the project eventually fell apart. The civil servants in charge of British space research did not feel that there was a sufficient market to support an independent British rocket launcher, and instead decided that we’d piggy-back on the Americans.

The French, on the other hand, persevered, and developed their massive successful Ariane rocket, which is actually much more economical and performs better than the US space shuttle did. Which shows how farsighted the French can be when it comes to developing new technologies. Unlike our politicos, who seem to want to get everything cheap from someone else.

Tragically, the space shuttle was beset with problems, which resulted in a series of horrific catastrophes. The best known of these is probably the Challenger disaster, which led to the programme being suspended for years while the Shuttle was being examined and redesigned. Then there was that terrible incident a few years ago where the Shuttle exploded just when it was re-entering the atmosphere, breaking up over the US. This has led to the Shuttle being cancelled, and America reliant for manned spaceflight on the Russians.

I don’t doubt that the design for MUSTARD was sound, and it would have been way ahead of the other competing spacecraft if it had been built. Unfortunately, economics, politics and the will to do it weren’t there.