The discovery bemused residents of a small town in northeastern Australia. The objects appear to be junk from a space launch, ...

Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned ...

Metal spheres found on a Queensland beach are likely space debris, not extraterrestrial. The Australian Space Agency is working with international partners to confirm their origin.

Several metallic objects washed up on a beach in Australia after possibly falling from the skies. But don’t worry, we’re ...

The coating could be applied on future spacecraft designed to block light from distant stars hosting exoplanets.

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

The shiny objects—each roughly twice the size of a basketball—began to appear on July 3. Authorities initially worried that ...

Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

The White House has appointed Harvard astronomer Avi Loeb to lead a new scientific advisory team investigating unidentified ...

A polarizing Harvard astronomer has been appointed to lead a Trump administration panel studying UFOs. Avi Loeb is leading a ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.