These tracks made by the Spirit rover early in the mission are certainly not there anymore. Credit: NASA/JPL/Cornell University
The footprints and rover tracks on the Moon will be there for millions of years, as there is no wind to blow them away. But Mars is a different story. Researchers looking at the tracks left by the two Mars Exploration Rovers, Spirit and Opportunity have found that Mars wind storms can quickly erase any evidence the rovers had been there.
“It is humbling, said Paul Geissler, lead author of a recent paper on eolian — or wind — processes on Mars. “We make kilometer-long human graffiti on the surface of another planet and then Mars just wipes the slate clean for the next visitors!” (…) Read the rest of Mars Rover Tracks Erased From Existence (625 words)
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(C) nancy for Universe Today, 2010. | Permalink | 4 comments | Add to del.icio.us Post
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