It was first published in 1774 by the French astronomer Charles Messier with 45 objects. It now includes 110 celestial objects: 40 galaxies, 29 globular clusters, 28 open star clusters ...

Also known as the Seven Sisters and Messier 45, this group of stars is easy to see with your naked eyes. Still, binoculars might give an even better view of the encounter between it and our lone ...