NASA’s Curiosity rover is attempting one of the rarest kinds of experiments ever tried on Mars, a painstaking chemical test that uses a limited supply of liquid reagents to hunt for traces of complex ...

A radio glitch Tuesday between the Phoenix Mars Lander and a Mars orbiter delayed the start of planned science experiments on the red planet. Mission leaders at the University of Arizona had hoped to ...

Wringing out clues that could change everything.

Strange, sinuous gullies etched into the dunes of Mars are finally giving up their secrets. These gouges, new experiments reveal, are carved by the explosive sublimation of dry ice, burrowing down the ...

Baker’s yeast isn’t just useful in the kitchen — it may also be built for space. Researchers found that yeast cells can ...