A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

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

, July 10 -- Scientists searching for signs of intelligent extraterrestrial life say some of the coldest objects in the Milky Way may not be stars at all but massive energy-collecting structures built ...

Scientists have several theories for how humanity could end, from asteroid impacts and AI to the dying sun and the universe’s ...

A military whistleblower claims U.S. officials received intelligence about bipedal aliens, plasmoids, and crashed UFO retrievals by other countries. With Trump ordering UFO files declassified, the ...

Deep beneath the oceans' crashing waves lies a hidden landscape more alien than many of us could ever dream. Below the ...

Natural gas will likely surpass oil for the first time as the top energy source that powers the U.S. by the end of the decade, EQT Corp. (EQT) CEO Toby Rice told Bloomberg on Thursday. "We probably ...

Astrophysicist Neil deGrasse Tyson has a blunt request for the government as the Pentagon rolls out the highly anticipated UFO files — just “show the alien!” Tyson shared his two cents Monday on “The ...

This article contains spoilers for the film Disclosure Day. As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters of the Third ...

A polarizing Harvard University astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks ...

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No black hole could ever be described as small. Even the most diminutive are many times the mass of the sun. But there is a now talk of a variety that throws shade on all others: the stupendously ...