For generations, humans have imagined what it would be like to discover life beyond Earth. Would alien beings look anything like us? Would they communicate through sounds, signals, or something ...

Compact sensor-packed probes, propelled by laser- or Sun-powered sails, could be humanity's first scouts to another star system.

Most people imagine first contact as a meeting with flesh-and-blood extraterrestrials, but this theory argues that advanced civilizations would likely abandon biology long before mastering ...

The recent confirmation of an atmosphere around a rocky exoplanet called LHS 1140b has created a wave of interest within the ...

U.S. Senator Marsha Blackburn won the GOP primary for governor, while Jerri Green won the Democratic nomination.

U.S. Sen. Marsha Blackburn has won Tennessee's Republican gubernatorial primary and will face Democrat Jerri Green in ...

US declassified records detail a 1963 probe into a claimed sphere crash in Brazil.

After decades of secrecy, stigma, and sometimes silliness—like the conspiratorial tales about recovered spacecraft and alien ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA/JPL-Caltech If there are indeed other beings in our galaxy, and they are sophisticated enough to traverse the expanse of ...

Donald Trump is facing extraordinary claims his administration enlisted television psychologist Dr Phil McGraw to assess secret UFO files before their public release – only for the broadcaster to ...