Mars and Venus once had oceans and atmospheres, and if still habitable, humans could have colonized multiple planets and ...
Experiments show that biomolecules trapped in pure ice could withstand the harsh radiation of Mars for tens of millions of years. If life ever existed on Mars, traces of it might still be frozen ...
NASA Mars Odyssey orbiter has been rotated to capture imagery of the Red Planet that would be similar to what an astronaut would see. Odyssey Deputy Project Scientist Laura Kerber explains. Credit: NA ...