Far from our own solar system, astronomers have finally watched what planetary scientists have long predicted but never ...

A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope.

A new composite image reveals the “Champagne Cluster” as two massive galaxy clusters caught in a rare, violent collision.

While surveying distant worlds beyond our solar system, researchers unexpectedly obtained the first direct images showing ...