Despite an abundance of data suggesting interstellar object 3I/ATLAS — the third object ever detected ripping through our solar system — is simply a comet, Harvard astronomer Avi Loeb still hasn’t ...

When a mysterious object from outside our solar system sweeps past Earth, scientists pay attention. In December 2025, astronomers did exactly that when 3I/ATLAS, only the third known interstellar ...

Update: Voyager is officially “the first human-made object to venture into interstellar space,” according to NASA. Even the spaciest of space nuts could be forgiven for being a little confused about ...