When a hunk of ice from another star system hurtles through our cosmic neighborhood, astronomers pay attention. When that same hunk of ice starts blasting out enough water to fill 70 Olympic swimming ...

With all the things going on here on Earth, but also in the immediate space that surrounds it, humanity seems to have forgotten all about a comet that sparked intense controversy not long ago. But now ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be older than our Solar System, according to a new study. The comet, first ...