NASA's Hubble Space Telescope spotted a cosmic Bullseye galaxy, revealing evidence of a rare kind of galactic collision.

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

The Hubble Space Telescope captured the ​​colorful, wispy clouds near the Tarantula Nebula, one of the most luminous and ...

Hubble captured the stunning star cluster NGC 2203, revealing its dazzling appearance. This cluster holds key insights into the lifetimes of stars. Hubble's 25th-anniversary image features Westerlund ...

This image of the galaxy cluster Abell 2744 is from the Frontier Fields project, using natural gravitational lenses and ...

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

This image from the NASA/ESA Hubble Space Telescope features Arp 72, a very selective galaxy group that only includes two galaxies interacting due to gravity: NGC 5996 (the large spiral galaxy) and ...

From vivid nebulae to a comprehensive view of our evolving universe, check out these 7 amazing deep-field images captured by ...

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

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

NASA's Hubble Space Telescope managed to capture an incredible image of a galaxy that looks an awful lot like a bullseye. "This was a serendipitous discovery," said Imad Pasha, the lead researcher ...