Today in the history of astronomy, a star is captured in an astrophotography first.

At incredibly small scales, the universe operates according to the unfamiliar rules of quantum mechanics. And Planck’s ...

Early birds can catch our satellite just 3° from two giant planets in Pisces: lovely ringed Saturn and far distant Neptune.

Astronomers have detected the most massive black hole merger ever observed, challenging stellar evolution and black hole formation theories.

Spot the Broken Engagement Ring asterism near Merak in Ursa Major, easily viewed with binoculars or a low-power telescope.

While astronomers have previously seen young discs that contain newborn, massive, Jupiter-like planets, McClure says, “we’ve always known that the first solid parts of planets, or planetesimals, must ...