After Google Earth and then Google Moon, now we’ve also got Google Mars.
Google Mars allows users to view the surface of the Red Planet either by a colour-coded altitude map, black and white photographs, or an infra-red map.
The maps used on Google Mars were made from images captured by Nasa probes Mars Odyssey and Mars Global Surveyor, both currently orbiting the planet.
The service was launched to mark the 151st anniversary of the birth of Percival Lowell, an astronomer who mapped and studied Mars in the 19th century.
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