Now there's possible evidence of large caves on Mars.
A Mars-orbiting satellite recently spotted seven dark spots near the planet's equator that scientists think could be entrances to underground caves...."Caves on Mars could become habitats for future explorers or could be the only structures that preserve evidence of past or present microbial life."
Let's go explore; faster, please.
Posted by Alan at April 3, 2007 12:15 PM