In the century or so since Edwin Hubble discovered that the Milky Way is just one of countless galaxies in the universe, our ...

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 ...

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.

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

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

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 ...

"We're trying to encounter an astronomical object that streaks through our solar system just once and we don’t want to miss ...

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 ...

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 ...

Astronomers found two strange, dense, icy objects by chance in 2021 during a survey of our galaxy’s disk by Japan’s AKARI satellite. A closer look showed that they are made of interstellar ice ...