The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

Caltech scientists published a study using NASA Curiosity rover imagery showing the past existence of warm water on Mars.

NASA's Curiosity rover has found evidence of water on ancient Mars with "rippled textures" and "landslide debris" in the ...

NASA's Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock.

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, with no ice covering the surface ...

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What does NASA's discovery of odd popcorn rocks on Mars actually mean? It has discovered an oddly textured rock similar to ...

The findings are the result of the ongoing studies performed by NASA’s Curiosity rover, which has been scouring the red planet since landing in 2012. The latest breakthrough came as scientists were ...

Artificial intelligence is making a huge splash now, but NASA saw its potential long ago. Here are four ways AI is helping the U.S. explore space.

Ancient ripples suggest a warmer, wetter past for the Red Planet that supported open water on its surface.

A collection of Martian rocks could reveal details about potential past life on the Red Planet – but first NASA has to get them back to Earth.