When 'Oumuamua traversed our solar system in 2017 it was the first confirmed Interstellar Object (ISO) to do so. Then in 2019, Comet 2l/Borisov did the same thing. These are the only two confirmed ...

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. Called 2020 VN40 and first discovered in ...

Hubble images from December 2025 show interstellar object 3I/ATLAS releasing two narrow jets of material as it moves away from the Sun, raising questions about rotation and activity ...

These snared worlds could be traded like Pokémon cards with neighboring star Alpha Centauri. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Next ...

A mysterious interstellar object has recently captured the attention of astronomers worldwide. This enigmatic visitor, observed sprouting a tendril-like structure extending toward the Sun, challenges ...

Interstellar object 3I/ATLAS is baffling astronomers with its bizarre, sun-facing anti-tail, confirmed by Hubble.

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Jan 24, 2024, 11:41pm EST A bright comet with large dust and ...

The outer solar system is a vast and mysterious place that could be harboring hidden objects we know almost nothing about — from the elusive Planet Nine and baby black holes to interstellar visitors ...

The Sun is orbited by eight planets, at least five dwarf planets, tens of thousands of asteroids, and around three trillion comets and icy bodies. Although not all objects of the solar system are as ...