Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Looking up reveals nature’s skylight, framing Arizona blue against fiery red stone in perfect composition. Photo credit: ...

Scientists have long known that ancient Homo sapiens and Neanderthals lived alongside each other for thousands of years—until ...

Scientists may have cracked the case of whether a seven-million-year-old fossil could walk upright. A new study found strong anatomical evidence that Sahelanthropus tchadensis was bipedal, including a ...

San Antonio’s Jailene Marisol Reyes got 40 years in federal prison after a Border Patrol probe tied her to an illegal migrant ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Apple TV+ has gradually become one of the strongest homes for science fiction on television. The streaming service has invested heavily in ambitious genre storytelling, from alternate-history space ...