The light that the NASA/ESA Hubble Space Telescope collected to create this image reached the telescope after a journey of ...

Andromeda never looked as good as it does in a new image from the Chandra X-ray observatory and a range of powerful ...

Because it doesn't interreact with light or electromagnetism, dark matter exists to us only through its influence on visible ...

“For example, Chandra’s X-rays reveal the high-energy radiation around the supermassive black hole at the center of M31 as ...

NASA/ESA's Hubble Space Telescope captures an image of the active galactic center in spiral galaxy UGC 11397, located in the ...

Hubble spotted a rare off-center black hole shredding a star, revealing the first optical discovery of a wandering ...

NASA's Chandra X-ray Observatory provides a new look at the Andromeda galaxy in this multi-wavelength image that includes ...

The Andromeda galaxy, also known as Messier 31 (M31), is the closest spiral galaxy to the Milky Way at a distance of about ...

Hubble Space Telescope snapped an image of UGC 11397, a spiral galaxy situated in the constellation Lyra, about 250 million ...

This stunning Hubble view of spiral galaxy UGC 11397 captures more than graceful arms and glowing stars—it hides a ravenous ...

The Andromeda galaxy is also known as Messier 31. It is a spiral galaxy located about 2.5 million light-years from Earth. On ...

Both Hubble and Chandra observations were combined to pinpoint the TDE's location, which is offset from the center of the ...