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 ...

It’s time to get your Messier marathon on! This weekend is the ideal time to run this year’s Messier marathon, during which observers challenge themselves to find every object in the famous comet ...

With the New Moon arriving tomorrow, amateur astronomers from around the world are getting ready for the annual Messier marathon. During the event, observers will attempt to spot as many objects from ...

Looking for a sky event this week? Check out our full Sky This Week column. March 20: The Moon passes Venus on the vernal equinox This is the ideal night to run the 2026 Messier marathon. This annual ...

Looking for a sky event this week? Check out our full Sky This Week column. January 18: Catch Caroline's Rose Today we're visiting a classic: the first object on Messier's list, the Crab Nebula (M1).

For one brief stretch each spring, amateur astronomers attempt one of backyard astronomy's most ambitious challenges: spotting an entire catalog of deep-sky objects in a single night. Known as the ...