A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.

When ET phones home, it could be his last call. Contrary to sci-fi movie depictions, our first contact might not be with a super advanced alien civilization at the height of power. Rather, Ivy League ...

A shocking CIA document has just raised doubts that the mysterious interstellar object is really a comet like NASA has ...

The controversial Harvard astronomer is one of the main sources of the "alien mothership" hypothesis. This is what he thinks, ...

To understand how we arrived at our current vision of elves, you have to rewind past Will Ferrell vehicles, Christmas ...

The goal should be a new golden rule linking the search for life elsewhere to the spread of life beyond the bounds of Earth.

Clear out your shelves for a bumper new crop of books by authors including Naomi Klein, Rebecca Solnit and Xand Van Tulleken, ...

What if the government offered you a one‑way ticket to another planet? This video explores the astonishing story of a secret human‑alien exchange mission that sent astronauts 40 light years from Earth ...

Breakthrough Listen searched for technosignatures from interstellar comet 3I/ATLAS but found no unusual signals or behavior ...

New Scientist writers and contributors have chosen their top science-y books, films, TV shows, music, video games and board ...