A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

A Catholic nun made a startling assertion about UFOs, cautioning that purported alien encounters are in fact a menacing ...

Avi Loeb’s White House panel has asked the Pentagon for videos and files on unexplained aerial sightings ...

Study pinpoints which rocky worlds could hang on to a life-supporting atmosphere ...

Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

Avi Loeb, a cosmologist who studied black holes and served as head of Harvard’s astronomy department until 2020, has been ...

What happens if you get abducted by aliens? Will you be carried off in a flying saucer? Will you be subjected to experiments? Or are the aliens friendly, curiou ...