messier 54

Messier 54 – the NGC 6715 Globular Cluster

Located in the Sagittarius Dwarf Galaxy, some 87,000 light years from Earth, is the globular star cluster known as Messier…

7 years ago

Elemental Mystery: Lithium Is Also Rare Outside Of The Milky Way

This new picture of M54 -- a part of a satellite galaxy to the Milky Way called the Sagittarius Dwarf…

10 years ago