Wednesday, June 4th, 2008 - 14:36:58 - Ehud Rattner
A set of twenty-nine Hubble Space Telescope (HST) images of an exotic type of active galaxy known as a “post-starburst quasar” show that interactions...
Black Hole Sheds Light on a Galaxy Wednesday, May 7th, 2008 - Ehud Rattner An international team has observed the light echo of an enormous X-ray flare, which was apparently produced when a single...
Black Hole's Secrets Revealed Friday, May 2nd, 2008 - Ehud Rattner Many galaxies have super-massive black holes at their core, which expel powerful jets of particles at nearly the speed of...
Wednesday, April 9th, 2008 - 14:36:39 - Ehud Rattner
How does one weigh a supermassive black hole that is anywhere between a million and a billion times the mass of the Sun? The answer could be as easy...
Wednesday, April 2nd, 2008 - 10:34:47 - Ehud Rattner
Using a new technique, two NASA scientists have identified the lightest known black hole. With a mass only about 3.8 times greater than our Sun and a...
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