Located in the northern constellation of Ursa Major, which also includes the Big Dipper, nearby galaxy Messier 81 is easily visible through binoculars or a small telescope. M81 is located at a ...

In this week's Astronomy magazine podcast, we'll help you observe the bright star Regulus, Bode's Galaxy (M81), and spiral galaxy NGC 2903 in your late-winter night sky.

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. | Credit ...

Astronomers trace repeating radio bursts to a 2-billion-light-year-old galaxy's outskirts, challenging everything we thought we knew about FRBs.

An international team of astronomers has used the Subaru Telescope to probe the stellar halo of the nearby Messier 81 (M81) galaxy. The observations resulted in one of the most detailed studies of ...

These X-ray objects appear point-like and are ten to a thousand times more luminous in X-rays than similar sources found in our Milky Way and the M81 galaxy.