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.

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

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

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

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

A supernova explosion occurred on July 4, 1054, resulting from the death of a star estimated to be nine to eleven times the ...

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

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

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...