NASA / GODDARD SPACE FLIGHT CENTER / SVS / SCIENCE PHOTO LIBRARY NASA / GODDARD SPACE FLIGHT CENTER / SVS / SCIENCE PHOTO LIBRARY
Mars terraforming. Animation showing a transition from a 'dry' Mars to a 'wet' Mars as viewed from a distance. This process, which involves changing the climate so it is more habitable, would be carried out to allow humans to colonise the planet. Mars is currently a cold, desert world, with no liquid water.
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