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 ...

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 ...

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

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 ...