These icy bodies contain organic molecules — and don’t fall into any known category of celestial object we’ve seen before.

In late 2017, a mysterious object tore through our solar system at breakneck speed. Astronomers scrambled to observe the fast ...

A new model has been developed to simulate interstellar activity within our solar system and the nearby Alpha Centauri system ...

How can astronomers pierce through the interstellar fog of the Milky Way—not to study distant objects, but to understand the ...

More information: Richard Cloete et al, Machine learning methods for automated interstellar object classification with LSST, Astronomy & Astrophysics (2024). DOI: 10.1051/0004-6361/202451118 ...

New three-dimensional (3D) models of objects in space have been released by NASA's Chandra X-ray Observatory. These 3D models ...

Turns out, it came from another star system. This is the first time humanity has observed an interstellar object. Astronomers discovered it on Oct. 19. At first, they thought it was a comet.

The detection of a large interstellar object in 2017 named 'Oumuamua was a landmark discovery. Figuring out where the wayward traveler came from, though, is another challenge entirely, especially ...

It was quickly discovered that the object, dubbed Oumuamua, had come from outside of our own solar system, making it the first interstellar object ever detected by humans. That’s pretty exciting ...

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This illustration shows the paths through our Solar System of the two confirmed interstellar objects, Oumuamua in 2017 (formally known as 1I/2017 U1), discovered in 2017, and the comet 2I/Borisov ...