Researchers have found new evidence for a massive subsurface ocean on Mars, again raising the possibility of microbial life.
The latest evidence suggests that Mars used to be a wet world covered in oceans, with astronomers uncovering not just icy remnants of this period, but signs of entire reservoirs of liquid water ...
a lot of things we don't know about the geological history of Mars, but the discovery of scads of pure sulfur just hanging about on the Martian surface suggests that there's something pretty big ...
The latest evidence suggests that Mars used to be a wet world covered in oceans, with astronomers uncovering not just icy remnants of this period, but signs of entire reservoirs of liquid water still ...