A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

New research confirms the Universe is expanding faster than theoretical models predict, intensifying the Hubble tension.

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

In a nutshell Astronomers studying the nearby Coma galaxy cluster have found new evidence that the universe is expanding ...

The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...

With images from the Hubble Space Telescope, we have new information here in the Milky Way about our closest neighboring ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

Astronomers are celebrating the completion of a 2.5-billion-pixel panoramic picture of the entire Andromeda Galaxy. The team includes several UC Santa Cruz researchers who made significant ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

The Andromeda galaxy is a colossal marvel in our sky, hosting over 1 trillion stars. Now, astronomers have used the Hubble ...