Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

The host star, HIP 67522, is slightly larger and cooler than our Sun. But unlike our middle-aged star, this one is just 17 ...

In the predawn hours of July 1, 2025, a faint streak of light caught the attention of astronomers peering through data from a ...

Astronomers from the University of Turku in Finland and elsewhere have performed a broadband spectral and timing study of an ...

NASA's James Webb Space Telescope (JWST) has produced a new image of the Bullet Cluster, which is a titanic collision between ...

NASA has since confirmed the object is an interstellar comet called 3I/ATLAS – and it is only the third interstellar object ...

Astronomers Discover 'Cosmic Fossil' Galaxy That Remained 'Frozen in Time' for Billions of Years in Space Fossils are a great ...

Astronomers have discovered a new object that originated outside of our Solar System - only the third to be found.

The "new stars" are best seen from the Southern Hemisphere, but people have spotted them from the United States by looking ...