Photographer Alan Dyer observes the star clusters Messier 7 and Messier 6 near the horizon above Montana’s Sweetgrass Hills—two of the deep-sky objects included in the Messier Marathon. Alan Dyer, ...
Each spring, amateur astronomers attempt the ultimate stargazing challenge—an overnight quest to spot every galaxy, nebula, and star cluster in Charles Messier’s famous catalog. Photographer Alan Dyer ...
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