We know of three interstellar objects (ISO) that have visited our inner solar system. Oumuamua was the first one, and it came ...

The MeerKAT radio telescope detected hydroxyl radicals from interstellar object 3I/ATLAS, suggesting it's shedding a ton of ...

Mysterious interstellar object 3I/ATLAS recently made its closest pass of the Sun, or perihelion, brightening up in ...

The object, initially thought to be a meteorite, could actually be Zond 1, a Soviet spacecraft that was destined for Venus 60 ...

3I/ATLAS is surrounded by “a complex jet structure,” new images show, sparking fresh speculation that the Manhattan-sized ...

Astronomers have observed a mysterious comet racing through the solar system towards both Earth and the Sun. It has led to ...