A diagram shows the trajectory of interstellar Comet 3I/ATLAS as it passes through the solar system. It will make its closest approach to the sun in October. Late in the evening on July 1, a telescope ...

Astronomers have discovered a strange new object in our Milky Way. An international team reported Wednesday that this celestial object — perhaps a star, pair of stars or something else entirely — is ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered a strange new object in our Milky Way galaxy. An international team reported Wednesday that this celestial object — perhaps a star, pair of ...

A Harvard physicist has asserted that new images of the Manhattan-sized interstellar object rocketing through our inner solar system back his claim that it’s not a comet — but instead possibly an ...