ZME Science on MSN7 天
Curiosity Rover Uncovers 3.7-Billion-Year-Old Ripples That Suggest Mars Once Had Ice-Free Lakes
Ancient ripples suggest a warmer, wetter past for the Red Planet that supported open water on its surface.
Tagtik on MSN4 天
NASA discovers traces of an extinct lake on Mars
NASA has found signs of a lake on Mars, with evidence suggesting the presence of water rather than just ice.
来自MSN3 个月
NASA's Mars findings: New clues in search for alien life
Life on Mars has yet to be confirmed ... a natural disaster, or an ice age.