A11pI3Z is only the third interstellar visitor to be discovered, and astronomers can’t say yet whether it is a comet or a ...

Astrophysicist Josep Trigo-Rodriguez of the Institute of Space Sciences near Barcelona, Spain, believes it is an interstellar ...

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the ...

An object thought to have come from another star has been seen entering the solar system at high speed, and is expected to ...

For millennia, the way we found our way home has been using the stars. The tech we have sent towards those stars also uses ...