Here’s how stars reveal a galaxy’s age—and what powers active cores like quasars and blazars.

Add Yahoo as a preferred source to see more of our stories on Google. An artist’s rendering of protocluster SPT2349-56 captures clashing galaxies in varied shapes and sizes, with orange gas ripped ...

For the first time, astronomers have traced a fast radio burst (FRB) to the outskirts of an ancient, dead, elliptical galaxy—an unprecedented home for a phenomenon previously associated with much ...

It might appear featureless and unexciting at first glance, but NASA/ESA Hubble Space Telescope observations of this elliptical galaxy—known as Messier 105—show that the stars near the galaxy's center ...

Seen from Earth, the giant elliptical galaxy M87 is just a two-dimensional blob, though one that appears perfectly symmetrical and thus a favored target of amateur astronomers. Yet, a new, highly ...

Ohio University astronomers have discovered the largest disk of hot, X-ray emitting gas ever observed in the universe: At 90,000 light years in diameter, it’s about 100,000 times the size of any ...

An Einstein ring! What at first appears to be a single, strangely shaped galaxy is actually two galaxies that are separated by a large distance. Look at the image above. What do you see? An oval ...

It is as humbling as it is motivating to think about how much we still have to learn about the universe. My collaborators and I have just tackled one of astrophysics’ enduring mysteries: how massive ...

Astronomers first detected the new FRB, dubbed FRB 20240209A, in February 2024 with the Canadian Hydrogen Intensity Mapping Experiment (CHIME). For the first time, astronomers have traced a fast radio ...

Orbits of the G objects at the center of our galaxy, with the supermassive black hole indicated with a white cross. Stars, gas and dust are in the background. Credit – Anna Ciurlo, Tuan Do/UCLA ...