Interstellar visitor Comet 3I/ATLAS was discovered just a week ago and ever since, astronomers across the world have been hard at work following it, trying to gather as much data on it as possible. The initial data on this object already suggested marked differences between it and the previous two known interstellar objects that crossed the Solar System.

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through the solar system — only the third-ever spotted, although scientists suspect many more might slip past unnoticed. The visitor from the stars, designated 3I/Atlas, is likely the largest yet detected, and has been classified as a comet, or cosmic snowball.

There are lots of objects floating around in our solar system, but one thing most have in common is a common origin, and then there's 3I/ATLAS.