Posts Tagged ‘the Moon’

Radio Programme Tonight on Bishop Grosseteste’s Medieval Big Bang Theory

June 14, 2017

Science Stories on Radio 4 tonight, `14th June 2017, at 9.00 pm is on ‘The Medieval Bishop’s Big Bang Theory’. According to the short description about it in the Radio Times, the programme’s presenter, ‘Philip Ball tells the tale of a medieval Big Bang Theory forged by Bishop Robert Grosseteste in the 12th century’.

Grosseteste was the 12th century bishop of Lincoln, and was one of the leading figures of the 12th century renaissance. As well as leading English churchman, Grosseteste was a pioneering natural philosopher. In his Hexaemeron, a theological and philosophical meditation on the first six days of creation, according to the story in Genesis, he worked out a theory that is surprisingly close to that of the modern ‘Big Bang’. In Genesis, the creation of the world begins when God separates the light from the darkness. Grosseteste believed that God had created the world beginning with a tiny point of light, which exploded outwards. Its expansion created ‘extension’, or space, and the material from which God subsequently created the material universe over the next five days.

A.C. Crombie, in his Science in the Middle Ages, Vol. 1: Augustine to Galileo (London: Mercury Books 1952) writes

The first important medieval writer to take up the study of optics was Grosseteste, and he set the direction for future developments. Grossetest gave particular importance to the study of optics because of his belief that light was the first ‘corporeal form’ of material things and was not only responsible for their dimensions in space but also was the first principle of motion and efficient causation. According to Grosseteste, all changes in the universe could be attributed ultimately to the activity of this fundamental corporeal form, and the action at a distance of one thing on another was brought about by the propagation of rays of force or, as he called it, the ‘multiplication of species’ or ‘virtue’. By this he meant the transmission of any form of efficient causality through a medium, the influence emanating from the source of the causality corresponding to a quality of the source, as, for instance, light emanated from a luminous body as a ‘species’ which multiplied itself from point to point through the medium in a movement that went in straight lines. All forms of efficient causality, as for instance, heat, astrological influence and mechanical action, Grosseteste held to be due to this propagation of ‘species’, though the most convenient form in which to study it5 was through visible light. (99-100).

This makes it sound very close to the modern theory that all the forces – gravity, electromagnetism and the strong and weak nuclear forces – were united at the Big Bang, and subsequently separated out from this primal Superforce.

Grosseteste was also one of the medieval writers, who first posited the Moon as the causes of the tides. The association between the Moon and the tides had first been made by the Stoic philosopher, Posidonius, who was born c. 135 BC. Crombie writes

Grossetest in the next century [following Giraldus Cambrensus in the 12th] attributed the tides to attraction by the moon’s ‘virtue’, which went in straight lines with its light. He said that the ebb and flow of the tides was caused by the moon drawing up from the sea floor mist, which pushed up the water when the moon was rising and was not yet strong enough to pull the mist through the water. When the moon had reached its highest point the mist was pulled through and the tide fell. The second, smaller monthly tide he attributed to lunar rays reflected from the crystalline sphere back to the opposite side of the earth, these being weaker than the direct rays. (126-7). It’s not quite right. The tides are simply caused by the Moon’s gravity acting on the oceans as a whole. Mist isn’t involved. Nevertheless, he was right in pointing to the Moon as the cause of the tides.

Which is more than can be said of Bill O’Reilly. Until recently, O’Reilly was the lead anchor on Fox News, Rupert Murdoch’s right-wing news network over in America. The host of the ‘O’Reilly Factor’, he specialised in right-wing harangues which occasionally ended with him insulting and screaming at his guests if they dared to disagree with him. He did this to the son of one of the firefighters, who lost his life in 9/11. The lad committed the unpardonable offence of saying that his father would not have blamed all Muslims for the attack, and would not have wanted America to go to war over it. This was too much for the veteran newsman, who screamed at the lad that he was a disgrace to his father, and then had him thrown off the show.

He also showed himself massively ignorant scientifically in an interview with the head of American Atheists, the atheist movement, which I think was set up and headed for years by Madalain Murray O’Hair. Trying to refute whatever point the man was making, O’Reilly seized on the notion of the tides as something that was scientifically inexplicable. There are clips on Kyle Kulinski’s Secular Talk and other left-wing news programmes of O’Reilly repeating, ‘Tides go in, tides go out, you can’t explain it’. All the while the lad looks at O’Reilly with a bemused expression on his face, and simply comments, ‘Perhaps its the mighty Thor’. O’Reilly, however, didn’t get the hint that he was being justifiably mocked, and so simply carried on with his daft refrain.

O’Reilly’s comments and use of the tides shows that O’Reilly knew precious little science, and that Grosseteste had a better idea of what caused it 900 or so years ago, in an age when books had to be copied out by hand and western science was beginning the recovery of ancient Greek and Latin scientific and mathematical texts and learning from the great natural scientists and mathematicians of the Muslim world.

Given O’Reilly’s massive ignorance on something I can remember being discussed in some of the text books we had at school, it’s no wonder that American scientists, educationalists and the general public are seriously worried by Trump’s attack on science education in America, and particular in his attempts to cover up climate change.

As for O’Reilly, he was sacked from Fox News a few months ago after his sordid and vile attitude towards women finally caught up with him. Like the head of the network, Roger Ailes, O’Reilly used his position to try to exploit women sexually. In the early part of this century he was forced to settle a case brought against him by a female colleague to whom O’Reilly had made an uninvited and very unwelcome sexually explicit phone call. This was followed by a series of allegations by other female journalists at Fox News of sexual harassment. This got to the point where the advertisers on the network got fed up, and started taking their custom elsewhere, at which point the veteran reporter lost his job.

Bishop Grosseteste, however, remains one of great figures in the history of western science. While many scientists would not share his religious beliefs, and would question the grounding of his scientific views in them, he is nevertheless important as one of the leading medieval scientists, who contributed to the foundation of modern science through his study of optics, mathematics and the natural world.

The Saturn Five Variants that Were Never Built

May 4, 2017

And now a little break from the elections. This is a short video from Vintage Space, discussing the variants of the Saturn V moon rockets that were designed, but never built. These new space vehicles were designed to be bigger and better. From what is said about them in the video, it seems the designers adopted a modular approach, or something like it, so that stages and rocket motors could be swapped around and altered to allow the rockets to be customised to suit different missions.

It’s a pity that these awesome machines were scrapped at the end of the Apollo missions. I’ve read letters in Spaceflight, one of the magazines published by the British Interplanetary Society by scientists, who believed that the proper way into space would have been through building Big Dumb Boosters. Although not reusable, they could be mass produced, which would mean they could be constructed for the cost of a battle ship, and bring launch costs down to about $100,000.

Some space scientists are still bitter about the destruction of the Saturn Vs and even the plans for them. They were the only rockets capable of taking people out to the Moon, and potentially further out into the Deep Black. John Lewis in his book, Mining the Sky, on how humanity could expand into space to exploit the rich material and energy resources of the solar system, compares the destruction of the Saturn V to the destruction of Chung He’s fleet. Chung He was a Fifteenth century Chinese explorer, who led an expedition that sailed around the world. One of the places he reached was the Bight of Benin in West Africa. On his return, however, the eunuchs of the imperial court decided that the fleet represented a threat to the stability and order of the Chinese empire. So they destroyed it, thus helping to keep China isolated from the outside world for centuries. The bureaucrats, who ordered the destruction of the Saturn V moon rockets were, in Lewis’ view, guilty of the same kind of thinking.

There are alternative crewed space vehicles under development, and it is believed that the Chinese are planning to send a crewed mission to the Moon, quite apart from the various schemes to land people on Mars.

In the meantime, this video shows some the spacecraft that could have been.

TTA Spacecraft 2000 – 2100: Videos, Spacecraft and Book Cover Art

April 19, 2017

I put up a post at the weekend about a video I’d found on YouTube, in which a fan of Stewart Cowley’s Spacecraft 2000-2100 had made a short CGI film as a tribute. The film was a promotional video for the book’s fictional Terran Trade Authority, the global governmental organisation that had overseen the construction of the spacecraft which had taken humanity to the planets, and from then on to the nearest stars, meeting friendly creatures from Alpha Centauri, and fighting a war against aliens from Proxima Centauri.

The book Spacecraft 2000-2100 was a ‘future history’, of the type that was quite common in SF from the 1950s to the 1970s, when scientists and science fiction writers were confident that it would only be a matter of decades, perhaps only a few years even, before humanity established colonies in space – orbital cities, bases and then colonies on the Moon and Mars. FTL – Faster Than Light travel would be invented, and humanity would go on into the Galaxy ‘to seek out new life forms and new civilisations’, in the words of the Classic Trek.

The spacecraft in the book all came from SF book covers by some of the great space artists of the ’70s – Chris Foss, Angus McKie, Peter Elson, Bob Layzell, Fred Gambino and Jim Burns, around which the author, Stewart Cowley, wove his story of invention and exploration. It’s one of my favourite space books. The spacecraft depicted and their settings had a strange, otherworldly, literally alien beauty, even when the scenes were of industry or simple rocket launches. After I found the first video, I found another. This one is rather more complete. It uses the same computer techniques to recreate the spacecraft, as well as a whole scenes from the book. The spacecraft race across alien landscapes, rise into the air, hover above vast future cities, or prepare to dock with huge space stations.

I also found this video by Scott Manley on YouTube, where he talks about the book. He found it amongst his father’s old things, which rather dates me. Along with some of the other facts he mentions, he talks about the picture of an alien spaceship, which was plagiarised a few years ago by another artist, who entered his version for the Turner Prize. Apparently, the book was also republished in 2005, but was not well-received. The future history had to be rewritten, and some of the pictures were replaced by computer art. There has, however, also been a Role-Playing Game created, which is set in the same universe as the book.

Here’s a few of the book covers, from which the art was taken. Top far left is by Angus McKie; top let is Tony Roberts, bottom left is Bob Layzell, while bottom right is by Peter Elson. Neither of the two bottom images appear in the book. Other pieces by them do appear, and these show Layzell’s and Elson’s style
This and other great pieces of SF art can be found in the book Sci-Fi Art: A Graphic History by Steve Holland (New York: HarperCollins 2009).

Soviet Space Art and Music

April 19, 2017

This is another fascinating space video I found on YouTube. Russia had a very strong space culture, possibly because it was the one area where they were undoubtedly in front of the Americans and the rest of the world for so long, arguably right up to the Moon landings. At one point there was a regular spot on Soviet television, where schoolchildren spoke to the cosmonauts on board the Salyut space stations.

The paintings in the video come from a magazine called Tekhnika-Molodezhi, which I think translates into English as ‘Technical Youth’. It shows how the Soviets imagined a future in which the Soviet Union, and by implication, the rest of the Communist bloc, were conquering space, landing on the Moon and colonising Mars. Back on Earth, they were pioneering new forms of transport technology, including giant walking robots, trains powered by magnetic levitation and futuristic cars. Many of these illustrations seem to have come from the 1950s. This was an optimistic decade for the Soviet Union. Stalin was dead, and Khrushchev had pledged himself to destroying the old b*stard’s ‘cult of personality’ in his 1953 Secret Speech. Living standards were rising, and consumer products were being developed and becoming more widespread. Something like an ‘affluent society’ was developing in the Soviet Union. At one point it looked like the Soviet Union was going to realise its potential and overtake the West as the most developed, progressive economy, a prospect that terrified the Americans. For more information on this, see the book Red Plenty.

The music’s electronica from 1984, according to the website. It’s interesting looking through some of the videos on the site, which also show that Russia produced some very interesting electronic/ synthesizer ‘pop’ music. The impression we always had when I was at school was that in popular music, the Russians were way behind us in the West. It’s fair to say that the Soviet authorities did distrust ‘decadent’ western music – Boney M’s ‘Ra-Ra Rasputin’ was banned because it was all about the Mad Monk, who was a non-person to the Soviet censor and official history. But it also shows that there was also a thriving youth musical culture as well, something I only found about at College.

Animated Video Based on Terran Trade Authority Spacecraft

April 14, 2017

Looking through YouTube, I found that someone had made an animated video about the spacecraft depicted in Steward Cowley’s Spacecraft: 2000 to 2100 (London: Hamlyn 1978).

The book’s supposed to be a handbook of 21st century spacecraft, published by the Terran Trade Authority. In fact, it’s a collection of illustrations from SF book covers by the great space artists Angus McKie, Bob Layzell, Tony Roberts and others, which Cowley then described as real spacecraft. These were part of a ‘future history’ of human space exploration and colonisation which included humans travelling to encounter intelligent alien civilisations on Proxima and Alpha Centauri, and fighting a war with the Proximans. As well as Spacecraft 2000-2100, Cowley also wrote Great Space Battles, the Tourist’s Guide to Transylvania, based on Horror book covers, and Home Brain Surgery and Other Household Skills. The artwork is stunningly beautiful. Here are a few examples.

As with so many books on space written in the 1970s, it had a timeline of what we could expect in the coming decades, predictions which now seem hopelessly dated and optimistic. For example, the ‘key historical dates’ in Spacecraft: 2000 to 2100 are

1987 – Introduction of nuclear powered engines: ion and plasma systems.

1990 – Foundation of the World Community Research Council.

1998 – WCRC North African Space Research Centres now operational.

1999 – World Trade Authority formed to co-ordinate international commerce.

2004 – The first spacefreighter, Colonial I, enters service.

2005 – Work starts on Lunar Station.

2011 – Lunar Station operational.

2012 – Work starts on Mars Station.

2014 – Introduction of the McKinley Ion Ultradrive in Colonial II.

2015 – Martian Queen makes first commercial passenger flight to Mars.

2018 – First shipment of new alloys from Lunar industry.

2027 – Warp0 Generator perfected by Henri devas.

2036 – Manned survey ship makes contact with Alpha Centaurians.

2038 – Language barrier broken.

2039 – Trade & Technology Exchange Agreement signed with Alpha.

– World Trade Authority becomes Terran Trade Authority.

2041 – First orbital industrial centre off Jupiter completed.

2042 – First Energy Absorbent Defence Shield (EADS) produced by the TTA.

2045 – Dr Hans Berger introduces the Gravity-Resist Generator.

2046 – Mars Shipyards completed.

2047 – Pathfinder IX Survey Ship destroyed by Proxima Centauri.

– Alpha Centauri attacked.

2048 – Interstellar Queen destroyed by Proxima Centauri.

– War declared.

2049 – Terran Defence Authority formed.

2052 – Battle for Mars.

2060 – Invasion of Proxima Centauri.

2068 – Peace Treaty negotiated.

2073 – First jet tube opened on Earth, between Europe and America.

2078 – First settler ship leaves for Arcturus.

2090 – Second settler ship.

2096 – Starblade introduced as first Alpha spaceliner.

If only!

Here’s the video:

Arthur C. Clarke Book on the Terraforming of Mars

March 18, 2017

Arthur C. Clarke – The Snows of Olympus: A Garden on Mars – The Illustrated History of Man’s Colonization of Mars (London: Victor Gollancz 1994).

A little while ago I put up a number of articles on the possible terraforming of various planets in our solar system. The prime candidate at the moment would be Mars, but people have also suggested ways to terraform Venus and the Moon. I’ve managed to dig out from my bookshelves a copy of Arthur C. Clarke’s book, The Snows of Olympus, which I bought way back in the 1990s. Clarke’s been called ‘The Space Prophet’ because of his article published in a radio hobbyists’ magazine shortly after the War predicting geostationary communications satellites. He has jokingly said in an article ‘How I Lost a Million Dollars in My Spare Time’ that he should have patented the concept, and so made himself a billionaire because of its immense value to the telecommunications industry. This book is no less prophetic in that it uses computer simulations to depict the gradual greening of the Red Planet over a thousand year period from the next few centuries to c. 3000.

The book has a prologue, in which Clarke gives the text of a speech he gave to future Martian colonists as part of the Planetary Society’s ‘Visions of Mars Project’. Launched by the late and much-missed astronomer and space visionary, Carl Sagan, this was a project to send the future colonists the gift of a collection of SF short stories about Mars aboard two probes due to land there. There’s then a short introduction in which Clarke lays out the aims of the book. The first chapter, ‘Prelude to Mars’, discusses the history of the exploration of the Red Planet by terrestrial astronomers and writers, such as Giovanni Schiaparelli, Percival Lowell, H.G. Wells and Edgar Rice Burroughs, C.S. Lewis in Out of the Silent Planet, and the controversy surrounding the supposed ‘face’ on Mars, made by Richard Hoagland and others.

Chapter 2 – ‘The Curtain Rises’ – is on the probes sent to explore Mars, such as the Mariner probes and discussion between himself, Sagan, Ray Bradbury and the JPL’s Bruce Murray at the Jet Propulsion Laboratory on the probes and their findings. He goes on to discuss Viking probes and the debate about American and Russian cooperative ventures in space research. This last ended for a time because of international tensions created by the Solidarity crisis in Poland.

Chapter 3 – ‘Going There’, describes the problems and suggested methods for reaching Mars, establishing crewed bases there, including various types of rocket from the conventional chemical to nuclear-thermal and atomic; solar sails and space elevators, George Bush seniors’ intention to launch a crewed mission to Mars by 2019, and the tasks that would immediately face the astronauts landing there.

Chapter 4- ‘Virtual Explorations’ is on the use of computers and VR to explore and map Mars, and particularly the Vistapro programme used in the generation of many of the images in the book.

Chapter 5 is on the artistic and computer depictions of Olympus Mons, the planet’s highest mountain and the gradual reclamation of its surface by vegetation, beginning with lichens, during the long centuries of terraforming. This culminates in the emergence of liquid water and creation of a sea surrounding the mountain.

Chapter 6 does the same for Eos Chasma, the ‘Chasm of the Dawn’, in the Valles Marineris.

Chapter 7 shows the same process as it would affect the Noctes Labyrinthes – the Labyrinth of Night. This forecasts the growth of forests in this part of Mars, beginning with pines but later including deciduous trees.

Chapter 8 – ‘The Longest Spring’ discusses the various methods that could be used to terraform Mars, such as coating the ice caps with carbon from Mars’ moon, Phobos, the use of orbiting mirrors to melt them, raising its temperature by turning Phobos into a miniature sun for about 40 days using ‘muon resonance’ – a form of nuclear reaction, and bombarding the planet with comets to cover it with water, and ‘Von Neumann’ machines that would gradually terraform the planet automatically.

‘Disneymars’ looks forward to a museum display and audiovisual presentation that would show the colonists what their planet would look like in the future as the terraforming progresses.

Chapter 9 – ‘Concerning Ends and Means’ discusses the moral dimension of terraforming, the immense historical importance of exploration and the need to continue this exploration to the Red Planet in order to preserve human civilisation and progress.

There are two appendices. The first is an extract from a speech, The Mars Project: Journeys beyond the Cold War, by US senator and WWII hero, Spark Matsunaga. The second, ‘So You’re Going to Mars’, is fictional advice given by the immigration authorities to people moving from Earth to Mars.

The quality of the computer graphics is mixed. Many of them, which were without doubt absolutely astonishing for the time, now look rather crude and dated as the technology has improved. Others, however, still stand up very well even today. The quality of the computer simulations of the terraforming process can be seen from this image below of what Eos Chasma might look like in 2500 AD.

There are also plenty of illustrations of Mars, rendered using more traditional artistic methods such as painting, including photos of Percival Lowell’s own drawings of what he believed was the planet’s network of canals.

Although the computer tools may have been superseded and improved in the decades since the book’s publication, I think the science, and the social issues Clarke discusses, are still solidly relevant and contemporary. Certainly there is now a popular movement to send humans to the Red Planet at some point in the coming decades, and prospective future colonists have even come forward to volunteer a few years ago. There is, however, a greater awareness of the medical dangers from radiation and microgravity that would affect – and possibly destroy – a mission to Mars. The dream, however, is still there, as shown by the success of the film The Martian a few years ago.

7 Earthlike Worlds Discovered Around Star Trappist-1

February 25, 2017

More awesome space news! This week, NASA announced that their Spitzer telescope had discovered a system of seven worlds orbiting the ultra-cool red dwarf star, Trappist-1. The star takes its name from the Belgian operated observatory, which found it. Astronomers from Liege university discovered two of these worlds. Three of these rocky worlds lie in the planet’s habitable zone, which means they could have life, and all of them have temperatures which would permit liquid water to exist. Because of the star’s small size and extremely cool temperature, they are closer to their star than Mercury is to the Sun. This video from the Kepler Telescope Channel also looks forward to the development of spacecraft that will be able to reach something like lightspeed, so that humanity may at some point in the future be able to expand into space. And at just 39 light years away, Trappist-1 and its worlds are a suitable nearby target for exploration. The scientists, who made the discovery, also say that the planets are so close together, that you’d be able to see all of them from the surface of one of the planets. They would loom larger than Earth’s Moon, and it would be possible to see even clouds and geological features on their surface.

H.P. Lovecraft on Big Business Corroding American Culture

February 8, 2017

I also found this quotation by the American SF/ Horror writer, H.P. Lovecraft, in Fritz Leiber’s A Spectre Is Haunting Texas. The book’s about a skeletally thin actor from a lunar colony, who gets dragged into portraying death on stage to encourage the enslaved Mexican, Black, Indian and poor White populations to rise up against their oppressors in a post-holocaust nuclear America dominated by Texas.

Lovecraft is undoubtedly one of the great writers of his genre, but his political views were extremely unpleasant. He was a racist, and the threat of racial intermixture is a very strong element in his novels. In The Shadow over Innsmouth, he portrays a town, whose inhabitants are no longer entirely human due to generations of breeding with a fish-like undersea race. Several of his stories about families that have mutated or regressed through in-breeding, and the worshippers in the Louisiana swamplands of the dread god, Cthulhu, are described as ‘mongrels’.

The quotation makes it quite clear that Lovecraft was no Socialist, but he thought them far less of a threat than that posed by big business to genuine culture.

One thing I’ll say for labour (the British labor Party); and that is, that it isn’t as offensive as the corresponding mutatory force which now threatens culture in America. I refer to the force of business as a dominative motive in life, and a persistent absorber of the strongest creative energies of the American people. This intensive commercialism is a force more basically dangerous and anti-cultural than labour ever has been, and threatens to build up an arrogant fabric which it will be very hard to overthrow or modify with civilised ideas. (p. 163).

Now my views on what count as ‘civilised ideas’ are probably very different from Lovecraft’s. But he is right in one sense about the corrosive effect of business. Thanks to the massive influence of business on American politics, America is no longer a democracy. The country and its allies are sending their brave troops to fight and die in an ever increasing number of wars for the profit of the military industrial complex and the oil companies in particular.

Russia and China Agreed to Join Moon Programme?

January 3, 2017

The I newspaper reported last week that the Chinese were continuing their programme of sending probes to the Moon and Mars, with the unstated intention of landing a human on the Moon. Way back in 2006, they were negotiating with the Russians about forming a joint programme to explore the Moon. Spaceflight, in its edition for November that year, reported

Russia and China may conclude a Moon exploration agreement by the end of the year, according to Anatoly Perminov, head of the Russian Space Agency.

China has successfully launched into orbit two manned space vehicles. Its first manned flight three years ago made it the third country to launch a human being into space on its own, after Russia and the US.

“I can say that as a result of the Russian-Chinese space sub-commission’s work, our priority is a joint programme on Moon exploration,” said Perminov. “A number of contracts have been signed involving both Russian and Chinese enterprises.”

“We are currently working on the Moon as partners, and we have concluded that Russia and China have moved beyond their previous relationship, when China was a buyer and we [Russia] were a seller,” Perminov added.

He explained that the Russian-Chinese Space Exploration Commission will hold a concluding session in Beijing by the end of 2006, and that the Russian delegation will be led by Prime Minister Mikhail Fradkov.

“The work of our sub-commission should create a favourable context for the visit of our [Russian] prime minister to China,” he said. “We have already adopted a cooperation programme with China for 2007-2009.”

Perminov also said that China may sign a contract to participate in a Russian project to bring soil back from one of Mars’ moons – Phobos.

“One of the directions we are working in is a flight to Phobos, with Chinese participation, which will bring back some of its soil to Earth.” Perminov said. “We plan to reach the final stage [of our talks] by the end of 2006, possibly even by the start of the sub-commission’s work under Prime Minister Fradkov.” (p. 405)

There was no mention of an agreement with Russia in the I’s article, so perhaps the pact has fallen apart. If it does exist, it would certainly show that the Russians are again a major competitor to the Americans in space, especially since the cancellation of the Space Shuttle.

Two Views of a Partly Terraformed Mars

January 2, 2017

Over the past few days, I’ve been discussing on this blog the possible terraforming of Mars. Way back in the 1990s, the late Arthur C. Clarke published a book of pictures he’d generated on his computer of what Mars would look like during and after the centuries-long process. I’m afraid I cleaned that out years ago. I have, however, managed to find two pictures of a partly terraformed Mars by the artist Michael Carroll, in The Case for Mars: The Plan to Settle the Red Planet and Why We Must, by Robert Zubrin and Richard Wagner (London: Simon and Schuster 1996).

The first shows a group of explorers making their way along a defile or gully.

mars-terraform-1

The second shows a view of the planet from space.

mars-terraform-2

The caption for this reads

Liquid water once coursed over the face of Mars and, given the technological capability of the twenty-first century, it may once again. Several decades of terraforming could transform Mars into a relatively warm and slightly moist planet suitable some day for explorers without space-suits, although breathing gear would still be required. Returning oceans to Mars is actually a possibility for the distant future.

I think Kim Stanley Robinson explored a Mars, which after centuries of terraforming now possessed oceans, in two of his trilogy of books on the Red Planet, Blue Mars and Green Mars.

There are also a series of videos on YouTube by someone, who has used the astronomy programme Celesta, to simulate the terraformation of Venus, the Moon, Mars and Titan.

As for Titan, Stephen Baxter’s SF book of the same name concludes with two astronauts, sent on a mission to Jupiter’s moon, waking up billions of years in the future. The Sun has expanded into a Red giant, supplying this currently icy world with the heat necessary for an Earthlike environment. By this time, however, humanity is extinct and the moon’s current occupants are a race of alien explorers.