For the first time, astronomers have traced a fast radio burst (FRB) to the outskirts of an ancient, dead, elliptical ...

Fast radio bursts are mysterious and brief flashes of radio emissions that were thought to be produced by magnetars, highly magnetized rotating neutron stars. Yet magnetars appear primarily in young ...

For years, high-energy energy flashes have kept astronomers guessing, with one theory emerging most recently. A discovery now ...

Astronomers have traced a mysterious fast radio burst to an unexpected place — an ancient, massive galaxy far removed from ...

Galaxy clusters are home to many giant elliptical galaxies that have completed their growth and are not forming stars.

"At first, I thought I completely messed up during our research," Olivia Achenbach of the United States Naval Academy told ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

The James Webb Space Telescope has captured an amazing view of interacting galaxies Arp 142. Arp 142 consists of a distorted ...

This rare quasar with spiral arms could help astronomers understand how supermassive black holes feed and grow.

They are young, gas-rich, and continue to form stars. On the other side, spheroidal galaxies, which include elliptical galaxies and the bulges of spiral galaxies. They are gas-poor, composed of very ...