The Messier Marathon is coming. Here’s how to see 110 deep-sky wonders in one night.

Each spring, amateur astronomers attempt the ultimate stargazing challenge—an overnight quest to spot every galaxy, nebula, ...
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Get ready to run this year's Messier marathon

French astronomer Charles Messier did not intend to be remembered for his discoveries of galaxies, nebulae, and stars clusters when he looked to the sky in the 1750s. Dubbed the "Ferret of Comets" by ...