Nevada has been hiding something from most of its 40 million annual visitors, and it has nothing to do with Las Vegas. Pack ...

Investigating an area of interesting light rock seen from orbit, Curiosity found some particularly weird-looking structures.

NASA's Curiosity rover found pure sulfur crystals inside a rock after backing over and accidentally crushing it on May 30, ...

Once it was clear that the finding was most likely real, the team took a closer look at the chemistry of the material nearest ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

July has arrived with explosions of fireworks and celebrations of the 250th anniversary of our country. For those who aren’t ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

Are aliens real? Was Fox Mulder right all along? We examine the prediction markets to gauge if the U.S. government will confirm that aliens exist before January 2029. The prediction market on a U.S.

A new Mars Rover image captured by NASA's Curiosity mission has reignited debate over whether unusual formations on the Red ...

A new rover prototype is teaching NASA scientists how to design robots that can think for themselves and navigate terrain ...

NASA’s Perseverance rover has uncovered the most extensive evidence yet of complex organic molecules on Mars, detecting ...