Is it possible that another civilization existed before us? That's the question posited by the Silurian Hypothesis.

Scientists in China discovered that ancient humans were making surprisingly advanced stone tools during a harsh ice age ...

If you loved watching Ryland Grace MacGyver his way through impossible problems in space, you need to meet Mark Watney. He's ...

Until the U.S. government has data or samples of alien material that can be shared, the story of extraterrestrial visitors is ...

And when people are convinced that they know a secret, world-shaking truth, they are willing to wait a long time for ...

As a mathematician—and given the recent buzz over UFO disclosures—I find myself entertained by a specific hypothetical: If a ...

Neil deGrasse Tyson is an astrophysicist who is the director of the Hayden Planetarium at the American Museum of Natural ...

We must not fall under the Pygmalion Delusion that AI is "conscious." It is merely a reflection of human intelligence, from ...

Astronomers in Japan recently launched what they say is the country's first organization dedicated to the search for alien ...

When you're looking for signs of extraterrestrial intelligence, it helps to know what you're looking for and to go about it ...

Some sci-fi writers are skilled enough to carefully build an intricate world across sagas spanning ten or more books.

The University of Arizona is opening a new exhibit this weekend that explores one of humanity's most enduring questions: Are ...