The hunt for life on Mars-new findings on rock `chimneys` could hold key to success
(PHYSorg.com Space & Earth)

The search for life on Mars has taken a step forward with the NASA Curiosity rover`s discovery of organic matter on the bottom of what was once a lake. It may once have been part of an alien life form or it might have a non-biological origin - either way this carbon would have provided a food source for any organic living thing in the vicinity.