Prior to this, only one FRB had ever been traced to the outer limits of a galaxy. In 2022, FRB 20200120E was traced to a dense star cluster, or globular cluster, on the outskirts of Messier 81 ...

Scientists, using infrared images from NASA's Spitzer Space Telescope, have found that the Milky Way’s graceful spiral structure is primarily shaped by two arms extending from a central bar of stars.

Just gravity. The perfectly picturesque spiral galaxy known as Messier 81, or M81, looks sharp in this composite from NASA's Spitzer and Hubble space telescopes and NASA's Galaxy Evolution Explorer.

Appropriately named, Helene is a Trojan moon, so called because it orbits at a Lagrange point. Two protostars are hidden in a single pixel near the center of a striking hourglass-shaped nebula in this ...