To find M81, look about 2° east of 24 Ursae Majoris. If you live under a dark sky, use binoculars first to locate the wonder, which will be paired with M82 just 38′ away.

The M81 in question had clearly been well-maintained and showed just 561 miles on the odometer. Likewise, a steel plate above the glovebox denoted it as the fourth of the 10 prototypes Ford and ...

Observations with Subaru Telescope’s Prime Focus Camera (Suprime-Cam) have revealed an extended structure of the spiral galaxy M81 that may hold a key to understanding the formation of galaxies ...

Most of the known satellite galaxies (circled in red) in the M81 galaxy group, along with seven newfound candidates (yellow), seem to cluster toward one side of the galaxy M81 (center).

NASA recently unveiled a breathtaking image of the M81 spiral galaxy, showcasing its intricate spiral arms and luminous core. Captured by the Spitzer Space Telescope, this infrared view offers ...

The sharpest image ever taken of the large "grand design" spiral galaxy M81 has just been released. This beautiful galaxy is tilted at an oblique angle on to our line of sight, giving a "birds-eye ...

The M81 Group of galaxies, 11.8 million light-years from Earth, are interacting gravitationally with each other, as shown clearly by the gas streaming among them.