The discovery of a vast, fresh impact scar on Mars began with what looked like a smudge in a routine weather snapshot. A camera built to monitor daily clouds and dust storms ended up flagging the ...

(Reuters) -A geomagnetic storm on Earth triggered by a large burst of solar radiation has temporarily grounded a Blue Origin rocket carrying twin NASA satellites built to measure space weather on Mars ...

NASA's Curiosity rover has been roaming the Red Planet since 2012, taking thousands of pictures, drilling small holes in the planet's surface and searching for evidence of past habitable environments ...

Four papers in the journal Science this week offer new details about the history of water on Mars, gleaned from the 2008 NASA Phoenix Mars Mission that was operated from The University of Arizona.