The small, icy visitor now racing away from the inner solar system is not just another comet. It is an interstellar object, ...

In this artist’s impression, a comet erupts with jets of gas as it falls toward the sun from the depths of the outer solar system. There’s a giant ball of ice barreling through the solar system right ...

While you’re reading this, the universe is basically throwing the most epic crash party imaginable, with galaxies, stars, and planets smashing into each other at speeds that would make “The Fast and ...

There’s a giant ball of ice barreling through the solar system right now, and it’s bigger than any we’ve seen before. It poses no threat to Earth, but this comet, called C/2014 UN271 ...

3I/ATLAS, only the third object from beyond our solar system ever spotted from Earth, was viewed from Mars by an orbiting European spacecraft. By Kenneth Chang Kenneth Chang reported on the first ...