The Milky Way’s Black Hole is Suddenly Eating a Lot More
By Annelies Rhemrev
As black holes go, Sagittarius A* is relatively low-key. The supermassive black hole at the center of our galaxy emits very little energy for its size, giving off roughly as much energy as the Sun, even though it is 4 billion [...]
Anne’s Image of the Day: Galaxy ESO 243-49
By Annelies Rhemrev
November 3, 2012
ESO 243-49, a large spiral galaxy in Phoenix
Image Credit: NASA, ESA and S. Farrell (University of Sydney)
Click here for a larger image.
ESO 243-49 is a large edge-on spiral galaxy, located about 290 million [...]
The Milky Way’s Black Hole is Ready for Lunch
By Annelies Rhemrev
Get ready for a fascinating eating experience in the center of our galaxy.
The event involves a supermassive black hole that may devour much of an approaching cloud of dust and gas known as G2.
Simulations of the dust and [...]
Rapidly Growing Giant Black Holes Found
By Annelies Rhemrev
Scientists at the University of Cambridge have used cutting-edge infrared surveys of the sky to discover a new population of enormous, rapidly growing supermassive black holes in the early Universe. The black holes were previously [...]
A New Black Hole in our Galaxy Discovered
By Annelies Rhemrev
NASA’s Swift satellite recently detected a rising tide of high-energy X-rays from a source toward the center of our Milky Way galaxy. The outburst, produced by a rare X-ray nova, announced the presence of a previously [...]
Surprise: Two Black Holes in One Globular Star Cluster
By Annelies Rhemrev
An unexpected discovery by an international team of astronomers is forcing scientists to rethink their understanding of the environment in globular star clusters, tight-knit collections containing hundreds of thousands of [...]