Space.com13h
Life as we don't know it: Some aliens may need sulfuric acid like we need water
So, if astrobiologists ever do find alien life with a weird chemistry that uses some liquid other than water, it's not likely ...
The Why Files on MSN17h
Alien Artifacts on Mars: What NASA doesn't want you to know
On July 25th, a NASA scientist was studying images of a region of Mars called "Cydonia" when something caught his eye. He had to take a second to process what he was seeing. He grabbed a magnifying ...