Surrounded by glowing discs of swirling gas, quasars emit immense light that can be seen across vast cosmic distances.

Messier 81, a grand design spiral galaxy 12 million light-years from Earth. Image: NASA/JPL-Caltech/S. Willner (Harvard-Smithsonian Center for Astrophysics) / Wikimedia Commons The Webb Space ...

"At first, I thought I completely messed up during our research," Olivia Achenbach of the United States Naval Academy told ...

Why it's so special: This image of a spiral galaxy taken by the Hubble Space Telescope is a portrait more than two decades in the making. Like most full-color images of space objects, it's a ...

The night sky has always played a crucial role in navigation, from early ocean crossings to modern GPS. Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with ...

A newly released Hubble pic shows the galaxy LEDA 22057, where the supernova explosion occurred. The spiral galaxy's swirling ...

Yale researchers among those who discovered three “ultra-massive” galaxies, which were formed shortly after the Big Bang and ...

The interferometer team, led by Steve Ertel, associate astronomer of Steward Observatory, observed several phenomena ...

NASA's James Webb Space Telescope has captured a unique image that revealed 44 individual stars in a galaxy 6.5 billion light ...