The X‑arithmetic technique offers a powerful new way to map the physics of other galactic structures across the universe and ...

The Hubble Space Telescope has turned its sharp eye toward a ghostly swirl of stars and gas known as the "Lost Galaxy," given ...

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

If not in visible stars and galaxies, the most likely hiding place for the matter is in the dark space between galaxies.

MUSE survey, an international team of astronomers has inspected a nuclear star cluster of the nearby large spiral galaxy ...

Galaxy mergers activate supermassive black holes, Euclid data shows, revealing more AGN in merging systems and new insights into galaxy evolution ...

Most smaller galaxies may not have supermassive black holes in their centers, according to a recent study using NASA's ...

Astronomers combined images from the James Webb Space Telescope and Hubble Space Telescope to create the highest-resolution image of two galaxies, IC 2163 on left and NGC 2207, on the verge of merging ...

The Andromeda galaxy helped Edwin Hubble settle a great debate in astronomy. Stocktrek Images via Getty Images A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known ...

Astronomers recently discovered a never-before-seen celestial phenomenon hiding in our own cosmic backyard. The mystery object, located just a short 15,000 light-years from Earth in our Milky Way ...

From your place inside the Milky Way, you are living within a galaxy that keeps a detailed chemical diary. Every star holds ...

A newly proposed type of supermassive black hole surrounded by a dense gas shell may account for the small red dots seen in ...