The moon will be closest to the Pleiades in the hours following sunset.

For centuries, scientists have puzzled over globular clusters, the dense star systems that orbit galaxies without dark matter. Using ultra-detailed simulations, researchers recreated their origins and ...

January doesn’t skimp on cosmic sightseeing. The month begins with a vibrant supermoon, continues with the year’s best Jupiter view, and ends with multiple moon-planet conjunctions. Aurora activity ...