Since life on Earth may have begun underground, learning more about any underground life that might have lived or may still live on Mars could shed light on the origins of life on Earth, researchers said.

MSN: Giant Mars crater shows evidence of ancient lake

He has reported as the space vehicle Pathfinder arrived on Mars and beamed live video of the planet's surface back to earth.

CNN: The View from Space

Bidders will have the chance to own items such as a signed tie worn by comedian Ricky Gervais at the Golden Globes 2011 and a tie worn by Bruno Mars on Saturday Night Live.

BBC: Celebrity ties for Scottish charity auction