Astronomers at ESO’s La Silla Observatory, Chile, have released a new image of the globular star cluster Messier 4. This image shows the spectacular globular star cluster Messier 4 (ESO / ESO Imaging Survey) Messier 4, also known as NGC 6121, is a globular cluster full of ancient stars in the constellation of Scorpius approximately 7,200 light years away. It is one of the closest and most studied of the globular clusters and recent work has revealed...