So which animals should colonize the moon, Mars, and beyond with the astronauts? There's little consensus yet. "Elaborate ecosystems [beyond Earth] are still far in the future and more in the ...

A Chinese Mars rover may have found evidence of an ancient ocean on the arid Red Planet. According to a new paper in the ...

A new NASA-led study suggests that photosynthetic microbes could thrive in hidden bubbles of meltwater below patches of ice on Mars. This could be one of the easiest places to search for ...