In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

Around 2015, astronomers took on the painstaking task of stitching together Hubble Space Telescope images of this galaxy, but that effort had focused on the galaxy's northern half. Still, however, the ...

Scientists predict Andromeda and the Milky Way will collide in about 4.5 billion years—reshaping the night sky forever!.

The Andromeda galaxy is a colossal marvel in our sky, hosting over 1 trillion stars. Now, astronomers have used the Hubble Space Telescope to capture hundreds of detailed images of our vast ...

Centaurus A: NGC 5128 is a galaxy in constellation Centaurus, discovered in 1826 by Scottish astronomer James Dunlop. Messier ...

Predictions are uncertain, but the solar system may be pushed farther from the galactic core or even ejected entirely from ...

Since Hubble’s launch, astronomers have discovered over 1 trillion galaxies, but Andromeda stands out as the closest and most ...

The Tarantula Nebula, also known as 30 Doradus, is revealed in an unusual light in this exceptionally deep Chandra X-ray ...

Astronomers spent a decade compiling this special image with the Hubble Space Telescope and then stitched together 600 photos ...

Arp 282: This image from the NASA/ESA Hubble Space Telescope feels incredibly three-dimensional for a piece of deep-space ...