Science and Space

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Mars surface more active than thought

The surface of Mars is more active than previously thought. New photographs from Mars Global Surveyor show new impact craters and gullies. Scientists also say that deposits of frozen carbon dioxide near the planet’s south pole have shrunk for three summers in a row suggesting climate change is in progress.

The newly released images also show boulder tracks at another site, which were not there two years ago. It was the first evidence scientists had seen of some kind of seismic activity on the planet.

The Mars Global Surveyor has been orbiting the planet since 1997; Nasa expects it to carry on doing so for another five to 10 years.

posted by: kyawoo at 00:57 | link | comments |
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