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

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

Deep oceans of magma once sloshed about inside the crust of Mars, seismic measurements taken by NASA's InSight mission ...

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

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The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

Spend your summer reading cozy romantasy tales, hard sci-fi adventures, ghostly thrillers, and horrifying alt-reality stories ...

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.

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