Science news this week: Life on Mars, weird water and a curious human cousin - Live Science

Science news this week: Life on Mars, weird water and a curious human cousin  Live ScienceA Mars rover found organic carbon just sitting on a rock  Science NewsNasa rover detects potential signatures of ancient microbial life on Mars  The GuardianIn one drilled Martian rock, Curiosity found 21 organic molecules — seven never before detected on Mars — including a nitrogen-bearing ring structure that belongs to the same chemical family as precursors to RNA