Interstellar object 3I/ATLAS shows an unexpected frontal glow that Harvard's Avi Loeb says cannot be explained by sunlight ...

Avi Loeb said bases this hypothesis on a July 21 image captured by the Hubble Space Telescope and shared by NASA.

Astronomers estimate it's roughly the size of the island of Manhattan. It's only the third known object from interstellar space to pass through our solar system.

The fastest interstellar object continues to be bizarre; is it rotating weirdly or is something off about its surface?

A respected Harvard astrophysicist has shared new claims about the mysterious interstellar object in our Solar System, saying ...

Astronomers have spotted only three objects known to have come from outside our solar system. The newest, called 3I/ATLAS, is ...

A Harvard scientist has suggested a 'hostile' object coming at us on Earth is an advanced 'mothership' after a warning was ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. The Hubble ...

Interstellar object 3I/ATLAS — which is zooming through our inner solar system — appears to be emitting its own light, ...

In the past decade, astronomers have witnessed three interstellar objects (ISOs) passing through the solar system. These ...

A century from now, a pair of spacecraft might boldly go where no human-made object has gone before: a black hole. Here's how ...

The nearest black hole that we know of at the moment is 1,560 light-years away. There’s probably a black hole lurking within ...