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

NASA has discovered an interstellar comet that's wandered into our backyard. The space agency spotted the object with the ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

Astronomers are monitoring an object headed our way that may have wandered over from another star system. Scientists have discovered what might be only the third known interstellar object to pass ...