The Kardashev Scale is one of the most widely discussed scientific frameworks for measuring the technological advancement of civilizations, from planetary energy use to controlling entire galaxies.

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time.

Ancient Greeks believed in alien life, as well as in gods, souls, and beings that inhabited the Moon, stars, and Heavens.

"When it involves illegal aliens who shouldn’t have been here in the first place, it's entirely preventable," Rep. Young Kim ...

Deep within massive rocky exoplanets, hidden oceans of molten rock may be generating powerful magnetic fields in an ...

UFO expert Nick Pope, best known for his appearances on the History Channel’s “Ancient Aliens,” has died. He was 60 years old ...

Caption: Elena Eberwein / NHPR A sketch of the aliens Betty and Barney Hill described under hypnosis as they tried to recall ...

Lee Cronin’s The Mummy’ reimagines the classic horror icon as a demonic entity contained by the body it possesses—here’s the ...

Judges, including those appointed by Trump, have found that some detainees have been illegally held despite their deportation ...

A high-energy laser weapon and a power struggle between federal agencies brought a night of hassles to the city.

ICE officers are continuing deportation operations despite a lapse in federal funding and agents being deployed to assist ...