black hole
NASA's Hubble Spots a Relic from a Shredded Galaxy
Astronomers believe the black hole may once have been at the core of a now-disintegrated unseen dwarf galaxy. The discovery of the black hole and the possible…
NASA's Chandra finds Milky Way's black hole grazing on asteroids
For several years Chandra has detected X-ray flares about once a day from the supermassive black hole known as Sagittarius A*, or “Sgr A*” for short. The…
BU Astrophysicist Leads Team That Discovers “Sloshing” Gas in Galaxy Cluster
Boston—Boston University astrophysicist Elizabeth Blanton led a team of researchers in the discovery of vast clouds of hot gas “sloshing” in Abell 2052, a…
Classic portrait of a barred spiral galaxy
Most spiral galaxies in the Universe have a bar structure in their centre, and Hubble's image of NGC 1073 offers a particularly clear view of one of these….
Scientists See "Sloshing" Galaxy Cluster
The scientists are studying the hot (30 million degree) gas using X-ray data from NASA's Chandra X-ray Observatory and optical data from the Very Large…
Keeping an Eye on the Universe
The University of Arizona's Catalina Sky Survey keeps a watchful eye on asteroids that might cross the Earth's path. A byproduct of that effort is the largest…