The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe.
Harvard astrophysicist Avi Loeb has been closely tracking this object and exploring the possibility that it could even be alien technology.
The comet is continuing its journey through our solar system, making its way around the sun and back again.
The comet known as 3I/ATLAS was discovered this summer after it entered from another star system.
It got its name because it is the third interstellar object known to have visited our solar system (3I), and because ATLAS was the telescope in Chile that discovered the object, according to Harvard astrophysicist Avi Loeb.
The comet was discovered on July 1, 2025, out near Jupiter.
Author summary: Tracking 3I/ATLAS comet updates.