Q How many galaxies are in the universe? — Gus Powvens, Madison, Wis. A Jim Lattis, director of the UW Space Place at the University of Wisconsin-Madison: Galaxies are clouds of stars that range in ...

Dark matter plays a crucial role in galaxy formation by acting as a gravitational “glue” that helps pull gas together to form ...

Astronomers uncovered seven dust-shrouded quasars from Cosmic Dawn, doubling the known tally of early supermassive black holes.

A team of researchers have used the James Webb Space Telescope to discover 12 ancient black holes from 12.9 billion years ago.

Astronomers using NASA’s James Webb Space Telescope have stumbled upon a puzzling population of galaxies that look far too ...

Using the wide-field survey capabilities of the Subaru Telescope, astronomers discovered active supermassive black holes, or ...

Astronomers use many methods to determine this number, including gravitational lensing, the universe’s expansion rate, and ...

That also helped explain a previous puzzle in the sizing of black holes in the early universe. Many of the larger AGNs found in previous studies had seemed to be too big for their galaxies, while the ...

Using the James Webb Space Telescope (JWST), scientists found that many galaxies started as thick discs before forming the thin discs we see now. This discovery helps answer a long-standing mystery ...

Galaxies are clouds of stars that range in both size and composition. Some contain hundreds of millions of stars while the largest galaxies can contain trillions of stars. And while it’s not entirely ...