Add Yahoo as a preferred source to see more of our stories on Google. Photo Illustration by Erin O'Flynn/The Daily Beast/Ken Crawford/Wikimedia Commons There's a theory that's in vogue in ...

WASHINGTON (AP) — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to lead a team of outside scientists to study the national ...

A NASA astronaut has revealed the one book he thinks most accurately describes aliens. Astronaut Stan Love has exclusively discussed aliens with The U.S. Sun and explained why he thinks we haven’t ...

Add Yahoo as a preferred source to see more of our stories on Google. Another batch of "UFO Files" have been dropped by the Pentagon, featuring previously classified documents, audio and footage of ...

An enormous rectangular-shaped 'structure' has been spotted on a map of the seafloor, sparking theories that an alien base ...

NASA astronaut Stan Love has exclusively discussed aliens with The U.S. Sun and explained why he thinks they haven’t visited us yet. Love is a 57-year-old American scientist and astronaut who joined ...

Scientists say the silence of the cosmos may be explained by the possibility that technological civilisations destroy themselves before they ever become easy to find. The idea draws on research into ...

Today marks a celestial moment of truth. As the interstellar comet 3I/ATLAS reaches its closest point to the Sun, a controversial theory faces its final test: is it just a comet, or an alien ...

NASA has released a new image captured from its Curiosity rover on Mars that appears to show a strange doorway on the Red Planet. The rover captured the grainy image from the Mast Camera (Mastcam) on ...