The first-ever shoreline discovered on
Mars would be a prime place to try and dig up proof of past microbial life on the red planet, researchers have announced.
The newfound shore (seen above in an artist's rendering) lies along what was once a body of water about the size of North America's Lake Champlain, said the University of Colorado at Boulder team that spotted the feature.
Although most ancient deltas on Mars have been badly eroded by winds, the new lake has been sheltered within a valley just north of the equator called Shalbatana Vallis.
Planetary geologist and lead author Gaetano Di Achille said he and his colleagues first spotted hints of the ancient lake in 2007 in sediment data from European Space Agency's Infrared Imaging Surveyor.
Now the scientists say they have "unambiguous evidence" of the well-maintained shoreline, thanks to high-resolution pictures of the region from NASA.
The lake is thought to be just three billion years old—which would mean the region was watery 300 million years
after Mars's warm, wet period is thought to have ended, the team says.
Source :
MARS LAKE PICTURE: First Proof of Ancient Shores Found
Water on MARS - LAKE PICTURE: First Proof of Ancient Shores Found 
