Add Yahoo as a preferred source to see more of our stories on Google. Photographer Alan Dyer observes the star clusters Messier 7 and Messier 6 near the horizon above Montana’s Sweetgrass Hills—two of ...

The Messier marathon is an activity that’s been popular with astronomy clubs since the 1980s. It’s a test of endurance and skill to view each of the 109 deep-sky objects in French comet-hunter Charles ...

In 1781, French astronomer Charles Messier published a catalog of 103 objects in the heavens. He was primarily interested in comets, but kept finding fuzzy smudges that did not move against the ...

Amateur astronomers had 12 spectacular new images to look to during this year's Messier marathon, a skywatching challenge that happened on the weekend of March 17 and 18. Messier Marathons happen in ...