Sketch of Legendary Astronomy Author and Presenter Patrick Moore

Moore was for many years the face of astronomy on television in the UK, thanks to him presenting The Sky at Night from the 1950s almost to his death. He was known as much for his eccentric appearance as his subject, so there were plenty of jokes about him wearing the same rumpled suit down the decades. He was sent up on programmes from The Two Ronnies to Dead Ringers, who spoofed him as ‘Old Moore’, a fairground fortune teller. But he remained dedicated to his subject, publishing a plethora of popular books on the subject. This included a series of Sky at Night books, one of which I found in the school library when I was a lad, as well as editing the annual Yearbooks of Astronomy. He also collaborated with the amazing British space and science fiction artist David A. Hardy on books such as The Challenge of the Stars. He also wrote at least two books on Mars. I found one in the central library in Bristol in the 1980s. A decade later, during the excitement about the series of probes NASA and other countries were sending to the Red Planet, he published Patrick Moore on Mars. Its title invites all manner of jokes along the lines of ‘best place for him.’ He also wrote a series of children’s science fiction books about a boy space explorer, Scott Summers. These were hard SF based on the science of the time and what was expected to develop later. They’re now obviously very dated. In one of these, Wanderer in Space, Summers flew to intercept an antimatter asteroid that was threatening Earth aboard an ion driven rocket, clearly anticipating developments in such propulsion that haven’t materialised. Ion drives exist, but they aren’t being used for manned space missions. Another of these was about a human colony on Mars, living in a glass dome. This ends with the colonists looking forward to one day emerging and living free on its surface. This one has been superseded by Kim Stanley Robinson’s trilogy of books about the settlement and terraforming of Mars. As well as these books, he also contributed to a string of popular science and astronomy magazines like Astronomy Now, New Voyager and Focus.

I think he was one of those scientists, with Arthur C. Clarke, who worked on radar during the War but I’m not sure. He never had a formal qualification in astronomy but was always strictly amateur. He was, however, granted an amateur doctorate by one of the universities. I’m sure, however, that at the level he was active in astronomy he would have probably easily passed a university degree in the subject. His maps of the Moon were so good that they were used by NASA in selecting landing sites for the Apollo missions. He never married because his sweetheart was killed during the War in an air raid. In his personal politics he was extremely right-wing, founding the One Country party, which was later merged with another small, extreme right-wing group. I can also remember him appearing on one of the chat shows and remarking that we’d be ‘in the cart’ without Maggie Thatcher. Like many people who have genuinely been through a war, he was deeply critical of it. In one of the chapters in The New Challenge of the Stars, about a possible hostile encounter between an asteroid ark and the inhabitants of an alien planet in whose system it has appeared, Moore makes a sharp comment about man’s folly of war entering a new battleground in space. He was also a staunch opponent of fox hunting. Back in the 90s he was a guest on the comedy programme Room 101, in which guests compete to have various useless and irritating objects or people consigned to the room made famous by Orwell’s 1984. In the vast majority cases, this is just light-hearted fun. But Moore was absolutely serious about sending fox hunting there and talked about how he’d written to various authorities to get it banned. Away from astronomy he also taught himself to play the xylophone and composed numerous pieces for the instrument. One of these was published in a classical music magazine. This did not translate into a career in music, however. He got very annoyed when his planned concert at the Hippodrome was cancelled due to lack of interest.

As well as serious, professional and amateur astronomers Moore talked to during his long career, he also met and talked to various eccentrics, including UFO contactees. One of those he interviewed on the Sky at Night was a man who believed he was in contact with peaceful aliens, and could speak four of their languages, including Venusian and Plutonian. This gentleman demonstrated it by saying the greeting, ‘Hello, space brothers’, in one of them. And although Moore persistently denied it, it seems he was one of the hands behind a hoax book by ‘Cedric Allingham’ about how he encountered an alien spacecraft and its inhabitants during a walking tour of the Scottish Highlands. This was during the first wave of UFO encounters in the late 40s and 50s. When people wrote to the publisher hoping to contact Allingham, he could not be traced. One excuse was that he was off walking in Switzerland. Computer analysis of the text reveals that it was probably written by Moore and revised by someone else in order to disguise his authorship. Moore remained very willing to meet ordinary members of the public and talk to them about his subject even in his retirement. He publicly gave out the address of his home in Herstmonceux, Sussex and said if people had questions or wanted to talk to him, they could drop in, shrugging off the obvious dangers of theft, burglary and so on.

Moore belonged to an age when popular science broadcasters could be real characters, often with eccentric mannerism. There was Magnus Pike, who was famous for waving his arms around while speaking, and the bearded dynamo of Botanic Man himself, David Bellamy, sent up in impressions by Lenny Henry. Since then, popular science programmes have been presented by people who are younger and/or a bit more hip. One BBC programme on astronomy a few years ago was presented by Queen guitarist Brian May, who had studied astrophysics at university before getting caught up in his career as an awesome global rock star. May had just handed in his astrophysics thesis after decades of touring the world with Mercury, Deacon et al. His co-presenter was the comedian Dara O’Brien, who had tried to study maths at university but had dropped out because of its difficulty. The Sky at Night is now presented by about three different hosts, including Black woman Maggie Aderin-Pocock. And I think the face of astronomy and cosmology now is probably Brian Cox after all his series on the subject. But for all this, I prefer the science presenters of a previous generation with all their quirks and foibles. These people were enthusiastic about their subject and were able to communicate their enthusiasm without trying to be too slick to connect with a mass audience. And they succeeded.

The 1984 Yearbook of Astronomy and What’s New in Space, just two of the books edited and written by Moore.

The Art of Bono and Gatland’s ‘The Frontiers of Space’

More space art for anyone who’s interested. This is a fascinating look at the great art in the 1971 book, Frontiers of Space by Philip Bono and Kenneth Gatland, taken from Sci-Fi Art’s channel on YouTube. Gatland was, I think, one of the leading members of the British Interplanetary Society, set up in the late 1930s to promote spaceflight and whose alumni includes Arthur C. Clarke and David A. Hardy. They’re still going, and I was a member for a few years. They have two magazines – a newsstand magazine, Spaceflight, and a technical Journal, which is far more academic. Looking through the art, I recognise some of the concepts. Several of the pictures show what looks like three space shuttles fixed together before flying off separately into space. That was the British Project MUSTARD concept for a spaceplane. If built, it would undoubtedly have made us a leading space power. But I think it was too advanced and too expensive, and so went the way of a number of similar British ideas. Earlier in the book there’s a German design for a spaceplane, in which the orbital spacecraft rides piggy-back on an air-breathing plane. It’s similar to the Sanger spaceplane concept which the Germans also developed in the 90s.

But aside from the interest in looking at visions of a spacefaring tomorrow that never happened, the artwork is brilliant.

Astronomer Percival Lowell’s View of a Peaceful Mars

Percival Lowell is the American astronomer most associated with the notorious and unfortunately entirely illusory Martian canals. The Italian astronomer Schiaparelli first saw what he called canali in the 19th century, but the Italian can mean both ‘canals’ and ‘channels’. Lowell also believed that they were canals dug by a global Martian civilisation, who used them to bring water from the poles to irrigate their desert planet. For them to achieve this, the highly advanced Martians had finally succeeded in banning war. I found this quotation from the great astronomer in Patrick Moore’s and David A. Hardy’s The New Challenge of the Stars (London: Mitchell Beazley in association with Sidgwick and Jackson Limited 1977), with the authors’ own comments looking forward to a similarly peaceful human colonisation of the Red Planet.

Perhaps we may look back to the words of Percival Lowell, written in 1906. He may have been wrong in his interpretation of the so-called Martian canals, but at least he put forward an idealistic view of the attitude of his ‘Martians’, whom, he believed, had outlawed warfare and had united in order to make the est of their arid world. There could be no conflict upon Mars. In Lowell’s words: ‘War is a survival among us from savage times, and affects now chiefly the boyish and unthinking element of the nation. The wisest realize that there are better ways of practising heroism and more certain ends of ensuring the survival of the fittest. It is something people outgrow.’ Let us hope that we, too, have outgrown it before we set up the first place on the red deserts of Mars.(P. 18).

Okay, the Social Darwinism is grotty, but of its time. And unfortunately humanity has not outgrown its capacity for violence and war, with the 20th century one of the worst periods. But it is an inspiring vision. The late, great comedian Bill Hicks used to end his gigs with a similar vision: If the world spent on peace all the money it now spends on arms, we could end hunger. Not one person would starve, and colonise space in peace forever.

That day can’t come too soon.

BBC 2 Programme Next Week on Possibility of Life on Pluto

Way back in the 1970s David Bowie as Ziggy Stardust asked if there was life on Mars. Things have advanced since then, and a new programme on BBC 2 next Monday, 6th July 2020, ponders the possibility that life might exist on the dwarf planet traditionally at the edge of our solar system: Pluto. From being a dead world, Pluto is geologically active and possesses organic chemistry, the building blocks of life. Which raises the question of whether life of some sort exists there.

The programme’s titled Pluto: Back from the Dead and the  blurb for it on page 62 on next week’s Radio Times for 4th – 10th July 2020 reads

New discoveries from the edge of the solar system are transforming what is known about Pluto, thanks to the New Horizons space probe that took the first-ever close up images of the dwarf planet. This Horizon documentary reveals that Pluto, once thought to be geologically dead, is an active world of stunning complexity, with mountains carved from ice, a nitrogen glacier that appears to be moving and a recently active volcano. The data sent back has led some scientists to speculate that there may even be life on Pluto today.

David Butcher’s piece about the programme on page 60 adds

There might be life on Pluto. It sounds far fetched, but that’s the conclusion some scientists have reached, and its one of the unexpected new angles explored in this intriguing edition of Horizon.

The insights come courtesy of New Horizons, a tiny spacecraft that travelled 3.26 billion miles to the edge of the solar system, and sent back amazingly detailed imagery.

It reveals a geologically fertile world with, among other features, a nitrogen glacier and a recently active volcano. Moreover, Pluto’s abundant supply of organic molecules and liquid water suggest some form of alien life might exist.

Pluto isn’t alone in possessing mountains of ice. They also exist on Titan and the other moons of the outer solar system. Titan also possesses organic chemistry, which is why scientists are particularly interested in it for clues about the origin of life on Earth. And it was also at one considered that it too may have life. Carl Sagan also suggested that it might even have volcanoes of frozen gas. There’s an illustration of Titan with one such volcano erupting by the astronomy/science Fiction artist David A. Hardy in his and Patrick Moore’s The New Challenge of the Stars. I don’t know if such volcanoes actually exist there. I haven’t seen anything about the Huygens probe to Saturn and its moons finding any.

Scientists also began speculating that life might also exist in the frozen wastes of the outer solar system after someone suggested that the difference of a few degrees’ temperature between light and shadow on them might be enough to provide the energy to drive life. The quantum physicist and SF author Stephen Baxter expanded this into a short story in his Xelee sequence, collected in the his short story anthology, Vacuum Diagrams. I think that story, however, was set further out in one of the dwarf planets of the Kuiper Belt.

After all this time searching the solar system, I think it’s extremely unlikely that there’s life on Pluto. But who knows, perhaps I’m wrong. It would be truly epoch-making if I was and Pluto did possess a biosphere, even if it was only simply microbial organisms.

The programme’s on BBC 2 at 9.00 pm on Monday, 6th July.

 

Percival Lowell: Martians Would Have Global Government to Fight Environmental Decline

Percival Lowell was the astronomer most responsible for popularizing the idea of Martian canals.

It was the Italian astronomer, Schiaparelli, who first claimed to have observed watercourses he called ‘canali’. The Italian word was translated ‘canals’, but it also means simply ‘channels’. And many astronomers regarded them simply as that, natural features. However, at the end of the 19th century many confidently believed that Mars was the home of intelligent life, though astronomers were increasingly aware that Mars was not as hospitable as Earth. They believed it was a planet of vast deserts. Lovell, an American astronomer with an observatory at Flagstaff, Arizona, was convinced that not only was there intelligent life on Mars, but that the Martians had a highly advanced civilization. They had constructed the canals he drew and mapped to bring water from their dying planet’s polar regions down to the equator to sustain life and civilization. He realized that the canals themselves would have been too small to observe from the Earth, but believed that the lines he saw were the surrounding tracts of lush, green vegetation, flourishing amid the encroaching Martian desert.

And he had a highly optimistic view of the moral progress of their civilization.

I found this brief passage quoting Lowell, and commenting on his view of the people of the Red Planet in The New Challenge of the Stars, by Patrick Moore and David A. Hardy, with a foreword by Arthur C. Clarke, (London: Michael Beazley Publishers Ltd 1977). Moore writes

Perhaps we may look back to the words of Percival Lowell, written in 1906. He may have been wrong in his interpretation of the so-called Martian canals, but at least he put forward an idealistic view of the attitude of his ‘Martians’. Whom, he believed, had outlawed warfare and had united in order to make the best of their arid world. There could be no conflict upon Mars. In Lowell’s words: ‘War is a survival among us from savage times, and affects now chiefly the boyish and unthinking element of the nation. The wisest realize that there are better ways of practicing heroism and other and more certain ends of ensuring the survival of the fittest. It is something people outgrow.’ Let us hope that we, too, have outgrown it before we set up the first base upon the red deserts of Mars. (p. 18).

The passage is shocking in its espousal of Social Darwinism, and the ‘survival of the fittest’. Moore himself had extreme right-wing, anti-immigrant views. But he was also firmly anti-War, no doubt strongly inspired by the death of his girlfriend during an air raid in World War II.

And would that humanity had outlawed war! We too also need, if not global government, at least global far-reaching global co-operation to fight the environmental decline of our own planet through climate change and mass extinction. Hardly a day goes by without another report in the papers about the immense seriousness of the environmental catastrophe. This last week two documentaries in particular on British TV warned us further about its extent. One was Drowning in Plastic, presented by Liz Bonnin, and the other was the final edition of Andrew Marr’s Darwin’s Dangerous Idea on BBC. This last programme appeared to trace the origin of the science of ecology to Darwin, and claimed that humanity’s destruction of the world’s ecosystem was partly due to ignorance of this aspect of Darwin’s theory of evolution.

It’s a contentious claim, as I suspect that the awareness of the interconnectness of living creatures actually predates Darwin, and that other scientists and naturalists, like the German explorer Humboldt, also made their own important contributions to development of ecological awareness.

But regardless of Marr’s claim about Darwin, we do need to be more like Lowell’s Martians to develop the global political, economic and social systems we need to fight our species’ destruction of the environment and its myriads of living creatures. And sadly, this is still being fought by vested corporate interests, such as the oil industry in America, led by the Koch Brothers, and right-wing Conservative parties. Such as the Republicans and Donald Trump, as well as the Tories and Tweezer over this side of the Atlantic. Lowell’s Martians don’t exist, but Lowell idealistic vision of them still has lessons for us in our own world, beset by environmental degradation and corporate, imperialist warfare.

Painting of Blake’s 7’s ‘Liberator’ by David A. Hardy

This is for all the fans of the classic British SF series, Blake’s 7. It’s a painting of their spaceship, the Liberator, before it came crashing to an end in ‘Tereminus’, the last programme of the third series. I found the painting on the SF/ weird art site, Tomorrow and Beyond.

David A. Hardy is one of the great veterans of British space and SF art. He’s illustrated numerous books on astronomy, including several with the late Sir Patrick Moore. The best known of these is probably The Challenge of the Stars. Hardy’s unusual in that he crosses the divide between space and SF art. It seems ridiculous to me that there is such a division, considering how so much science fiction art is set in the Black, and the care with which many SF artists take to portray it. I was rather surprised to find this. I knew Hardy also painted SF, I didn’t think he’d painted any TV material.

The Fantastic Space Art of David A. Hardy

This is another couple of videos from the redoubtable Martin Kennedy showcasing the amazing work of yet another space and Science Fiction artist, David A. Hardy. Hardy is one of the longest running space and SF artist working. The entry on him in Stuart Holland’s Sci-Fi Art: A Graphic History, runs:

David Hardy’s introduction to astronomical illustration was a somewhat rushed affair. In 1954, as a mere 18-year-old, he was commissioned to produce eight black and white illustrations for a book by legendary UK astronomer Patrick Moore: Suns, Myths, and Men. He had just five days to create them before British national service-conscription-required him to join the Royal Air Force. The commission was all the more remarkable as Hardy had only painted his first piece of astronomical art four years previously, inspired by the work of Chesley Bonestell.

Since those early days, Hardy (1936-) has garnered numerous awards for artwork that spans the science fiction/hard science divide. Born in Bourneville, Birmingham, in the UK, he honed his talents painting chocolate boxes for Cadbury’s. By 1965 he had become a freelance illustrator, beginning a career that resulted in covers for dozens of books and magazines, both factual, such as New Scientist, Focus, and various astronomical publications, for which he also writes; and SF, including Analog and Fantasy & Science Fiction. 1972 saw the publication of Challenge of the Stars, which Hardy not only illustrated but co-wrote with Patrick Moore (the book was updated in 1978 as New Challenge of the Stars). A bestseller, it joined the select pantheon of book that influenced a new generation of up-and-coming astronomical artists.

By now, Hardy’s work was receiving international recognition, and in 1979 he was nominated for the Hugo Award for Best Professional Artist. Tow years later, another book followed, Galactic Tours, which as the name suggests is a “factitious” guidebook for the interstellar tourist. As a result of the book, travel company Thomas Cook approached Hardy about becoming a consultant on the future of tourism in space-long before Richard Branson had planned Virgin’s conquest of the stars.

Hardy has written an SF novel, Aurora: A Child of Two Worlds; worked on the movie The Neverending Story, and on TV (Cosmos, Horizon, The Sky at Night, Blake’s Seven), and produced record covers for – unsurprisingly – Holst’s The Planets and for bands such as Hawkwind, the Moody Blues, and Pink Floyd.

In 2004, Hardy’s long-standing partnership with Patrick Moore culminated in the award-winning Futures, in which the two explored the changing perceptions of space exploration since they first collaborated in the ’50s, the ’70s (the era of Challenge of the Stars) and into the 21st century. Artistically, Hardy has also embraced the growing digital trend that started in the approach to the new millennium. While still painting in acrylic and oil, he now uses Photoshop as a matter of course.

In March 2003, Hardy was paid perhaps the ultimate accolade an astronomical artist can receive: he had an asteroid [13329] named after him. Discovered ini September, 1998, it was christened Davidhardy=1998 SB32-high praise indeed!
(P. 130).

Several of the paintings in the video come from the Challenge of the Stars and its updated version.

The videos also include his cover illustration for Arthur C. Clarke’s The Snows of Olympus: A Garden on Mars – the History of Man’s Colonisation of Mars, which is another ‘future history’, this time of the terraforming of the Red Planet.

I have to say that I’m really impressed he also worked on Blake’s 7. This was low-budget British SF, but it had some create scripts and a really beautiful spaceship in The Liberator. And I would far rather go into space on something designed by Hardy, and operated by Thomas Cook, than by Branson.

Terraforming the Moon by Comet

In my last blog post, I discussed the passed in David A. Hardy’s book, Atlas of the Solar System, in which he described the possible methods which might be used in the future to transform Mercury, Venus, the Moon and Mars into worlds, where humans and other creatures could live in the open, instead of the enclosed environments they need now to protect them from the harsh conditions of space. In the case of Venus, comets would be used to increase the planet’s rotation from its current 224 Earth days to a terrestrial day, and give the planet water. Looking through YouTube, I found this video by Fraser Cain, in which he talks about using the same method to terraform the Moon, as suggested by the space scientist and SF writer, Gregory Benford. This is part of a series of videos on space and space colonisation. At the beginning of the video, he mentions a previous one about the terraforming of Venus.

The explanatory section on the YouTube page provides this transcript of his talk.

In our episode about terraforming Venus, we talked about cooling the planet with a giant sunshade, and then hand-wavingly bind up all that carbon dioxide.

We did the same with Mars, filling the atmosphere with greenhouse gasses to warm it up, and releasing the planet’s vast stores of C02 to thicken the atmosphere. Then just crash in a few comets worth of water and upgrade them to to a 3 star resort.

We’re pitching this as a new series on the Discovery Network, called “Flip My Planet – Canada”.

Now let’s turn our imagination towards another rockball that is really more of a fixer-upper: The Moon. I know, you never even thought of the Moon as a place that we could possibly terra-renovate. Go ahead and imagine with me all the possibilities of a verdant green and blue little world hanging in the night sky. Doesn’t that sound great?

So, what does it take? Do we tear it down and just use the orbital lot space? Should we raise it up and lay a new foundation? Or could we get away with a few coats of paint and adding an atrium on the backside?

Fortunately for me, scientist and sci-fi author Gregory “Planetary Makeover” Benford has already done the math.

Let’s take a look at what we’d need to get the Moon habitable. For starters, the fact that the Moon is so close to Earth is a huge advantage. This is like living on the same block as a Home Depot, and we won’t have to travel far to get supplies and equipment to and from our project.

We’re going to need an atmosphere thick enough to breathe and trap in the Sun’s heat. This takes wild comet capture and harvest, tear them apart and smash them into the Moon.

Benford notes that you probably want be careful not to let an entire comet collide with the Moon because it might spray your primary investment home with debris and do a little damage to the resale value, or potentially annoy your tenants.

This could get bad enough that we’d have to terraform Earth to get it livable again, and you’d need to bring in Mike Holmes to publicly shame us and put our primary residence back in order.

After you’d splattered a few comets on the Moon, it would have an atmosphere almost immediately. The transfer of momentum from the comet chunks would get the Moon rotating more rapidly.

If you invest a little more in your planning stage, you could get the Moon spinning once every 24 hours, and even tilt its axis to get seasons. Benford estimates that we’d need 100 Halley’s mass comets to get the job done. This might sound like a pretty tall order, but it’s tiny compared to number of comets we’d need for your Mars or Venus real estate scheme.

The maintenance and upkeep isn’t going to be without its challenges. Low gravity on the Moon means that it can’t hold onto its atmosphere for longer than a few thousand years.

Once you got the process going, you’d need to be constantly replenishing our your orbital cottage with fresh atmosphere. Fortunately, we’ve got a whole Solar System’s worth of ice to exploit.

The benefits of a terraformed summer home on the Moon are numerous. For example, if the Moon had an atmosphere as thick as the Earth’s, you could strap on a pair of wings and fly around in the 1/6th gravity.

The enormous gravity of the Earth would pull the Moon’s oceans around the planet with 20 meter tides. You could surf the tide for kilometers as it washes across the surface in a miniature version of the shallow water scene in Interstellar.

This might be the greatest sponsorship opportunity for GoPro of all time. Look out Kiteboarding, you’re about to get more extreme.

Everyone always wants to talk about terraforming Venus or Mars. Let them be, that’s too much work. The next time someone brings it up at D&D night, you can blow their minds with your well crafted argument on why we want to start with the Moon.

I can remember David A. Hardy illustrating a few articles on future human habitats on the Moon, showing people enjoying themselves flying around and swimming at just such a lunar resort. One of these was for an article in the sadly short-lived space and astronomy magazine, New Voyager. The resort was in an enclosed dome, rather than on the terraformed surface. The Scots space scientist, Duncan Lunan, in his book, Man and the Planets, also suggested that to prevent the Moon’s atmosphere from being lost to space, the whole planet should be contained with a kind of giant inflatable bubble. This is waaaay beyond modern technological capability, but not, perhaps, that of the future. So perhaps at some point in the far future, the Moon may also join Earth as a living, habitable world.

David A. Hardy on Terraforming the Solar System

As well as colonising the other planets in the solar system with self-contained, sealed environments to protect their future human inhabitants, it may also one day be possible to terraform them. This means transforming them from their currently hostile conditions to an Earthlike environment. At the moment, the planet considered most suitable for terraforming is Mars, because of all the planets it seems to present the least obstacles to this form of planetary engineering. I can remember reading a piece in the Sunday Express way back in the 1980s, which discussed James Lovelock’s suggestions for creating an earthlike atmosphere on the Red Planet. Lovelock is the creator of the Gaia hypothesis, the theory that Earth’s biosphere acts like a gigantic, self-regulating organism. This became a favourite of several of the New Age neo-pagan religions in the 1990s, where it was incorporated into worship of the Earth Mother. Lovelock believed that while nuclear weapons were a serious danger to all life on Earth, they could be used creatively on Mars to produce an environment that would support life. Mars has large amounts of carbon dioxide locked up at its polar regions in the form of dry ice. he believed that this could be melted using nuclear missiles. Specially targeted nuclear explosions would cover the polar regions with an insulating layer of soil. This would keep the heat in, which is currently radiated back into space, reflected by the white ice. The rise in temperature would cause the dry ice to sublimate into carbon dioxide gas. This would then start a greenhouse effect, which would see more carbon dioxide and other gases released into the Martian atmosphere. This would eventually create an environment, where the atmosphere was thick enough for humans to be able to move around without space suits. They would, however, still need oxygen masks and tanks to be able to breathe. Lovelock was extremely optimistic about how many weapons would be needed. He believed that you’d only need four, if I remember correctly.

Lovelock’s ideas are wrong, but other scientists and Science Fiction writers have also suggested ways of transforming the Red Planet into a place where life can thrive. Back in the 1990s, Kim Stanley Robinson wrote a trilogy of books set on a Mars that was being colonised and terraformed by humanity, beginning with Red Mars. The veteran SF writer, Arthur C. Clarke, also produced a book in which he used to a computer programme to show what Mars may look like as it’s being terraformed. Over hundreds, perhaps even a thousand years, rivers, seas and oceans develop and green spreads over its land surface as vegetation begins growing on its previously barren surface.

David A. Hardy, the space artist, who has illustrated a number of books on space, including several with the late Patrick Moore, also described the various ways in which the Moon, as well as Mercury, Venus and Mars, could be terraformed in his 1981 book, Atlas of the Solar System (Kingswood, Surrey: World’s Work). He writes

Taking the concept of manned bases on other planets still further, there is the staggering possibility of ‘planetary engineering’ or terraforming – a term coined in 1942 by science fiction writer Jack Williamson. The idea is simply to make other worlds habitable by humans. An early suggestion, in 1961, by Carl Sagan was to ‘seed’ the atmosphere of Venus with blue-green algae, converting the carbon dioxide into oxygen and at the same time reducing the pressure and temperature (by eliminating the greenhouse effect). The upper clouds would condense and rain would fall, forming oceans.

A more recent alternative, now that we know how hostile Venus really is, is to ferry in ice asteroids 15 km or so in diameter, put them into orbit around Venus and aim them, using rocket jets, at a specific spot on the surface. Each crashes at nearly 100 km/s, at such an angle that Venus’ rotation is increased until a 24-hour day is approached, while at the same time water is provided as the ice melts. Then the atmosphere is seeded with blue-green algae.

The same could even be done with the Moon: once given a breathable atmosphere by baking oxygen out of the rocks with giant parabolic mirrors, it would remain for thousands of years, even if not replenished. The time factor for the operation is remarkably short. Mercury would need to be shielded from the Sun by a ‘parasol’ of rocky particles put up by mass-driver, or by a man-made ring. Mars would need to be warmed up, perhaps by reflecting sunlight on to the poles with huge, thin metal-foil mirrors, increasing the energy-flow at the poles by 20 per cent. or we could spread dark material from its carbonaceous moons on them with a mass-driver. Rich not only in carbon but in oxygen, nitrogen and hydrogen, this is excellent raw material for fertiliser. One the atmosphere was thickened, the greenhouse effect and carefully chosen plant life should do the rest. (pp. 86-7).

The process of transforming these planets into habitable worlds would take quite a long time – decades, if not centuries, and at present it is the stuff of science fiction. But I hope that there will be a time when we can move out from Earth to create new homes for life and civilisation on these worlds.