Watch live online as the dwarf planet Ceres swoops in front of the 'grand design' spiral galaxy Messier 100 this weekend. This weekend, you can watch live as the first asteroid ever discovered ...

The scavenger hunt is not yet complete—the Hubble Messier Catalog currently exhibits images of 84 of the 110 Messier objects and plots them on an interactive map—but that’s partly because of ...

Hubble Space Telescope captures stunning images of various galaxies, including Antennae Galaxies, Centaurus A, and Messier 100. These images reveal intricate details and interactions within our ...

But Messier included several other objects that are easy to distinguish — M7 (Ptolemy’s Cluster), M44 (the Beehive Cluster), and that double star M40, to name a few.

Messier 78 M78 (NGC 2068) in Orion is one of more than 100 Messier objects on display this weekend. Martin Heigan (Flickr) Friday, March 17 Mercury reaches superior conjunction at 7 A.M. EDT.

Spiral galaxy Messier 106–also known as NGC 4258–is the star of a new image taken with the James Webb Space Telescope (JWST). Known for its galactic pyrotechnics, this swirling galaxy is about ...