Globular clusters are densely-packed collections of stars bound together gravitationally in roughly-shaped spheres. They contain hundreds of thousands of stars.…
[/caption] Excellent teamwork by astronomers working in two different wavebands – x-ray and optical - has led to the discovery…
[/caption] An international team of astronomers has identified two new tidal streams in M31, the Andromeda galaxy. They are more-or-less…