Take a journey to 89 million light-years away from Earth to the NGC 7727 galaxy. It harbors the closest pair of supermassive black holes discovered yet. Credit: ESO/L. Calçada ; N. Risinger (skysurvey ...

The word itself comes from galaktikós kyklos, or “milky circle,” the ancient Greek term for the Milky Way, our home galaxy.

Travel back 390 million years after the big bang to the ancient Maisie's Galaxy in this stunning 3D visualization that ...