A pair of stars orbiting one another has been found near the supermassive black hole Sagittarius A* using the European ...

ESO/L. Calçada, N. Risinger (skysurvey.org), DSS, VISTA, VVV Survey/D. Minniti DSS, Nogueras-Lara et al., Schoedel, NACO, ...

The "afterglow" of the universe is an important piece of evidence for the Big Bang. This background radiation also provides ...

A mysterious cluster of 60 stars may be just another Milky Way star cluster, or it may be one of the smallest galaxies ever ...