Why a subglacial Martian lake raises hopes for alien life
The Red Planet might not be as parched as scientists thought.
Liquid water, the key ingredient for all known life, has long proven elusive on Mars. In recent years, scientists have been teased by seasonal trickles thought to be evidence of water flowing just below the surface. But there’s been no evidence of large stores of the liquid stuff, until now.
Italian scientists announced Wednesday that they had discovered a surprising signature in radar data from the European Space Agency’s Mars Express orbiter. The only explanation that fit, they said, was that
