mrt 172014
 
Anne's Image of the Day: Constellation Corona Australis

March 17, 2014 Corona Australis, a small southern constellation Image Credit & Copyright: Warren A. Keller, Billions and Billions Fine Art Astrophotography Data acquisition: Brett Soames Corona Australis (also known as CrA and the Southern Crown) is a small, southern constellation, bordered by Sagittarius to the north, Scorpius to the west, Telescopium to the south, and Ara to the [continue reading]

aug 152013
 
New Pulsar Reveals Feeding Habits of Milky Way’s Black Hole

  A team of astronomers, including Heino Falcke (Radboud University Nijmegen/ ASTRON) and Adam Deller (ASTRON), has discovered radio pulses from a neutron star practically next door to the supermassive black hole which resides at the center of the Milky Way. Radio ‘pulsars’ are rapidly spinning neutron stars, ubiquitous in the rest of the Milky [continue reading]

dec 272012
 
More Active Black Holes Than Thought

  Very sensitive, wide-field observations with a worldwide network of radio telescopes have uncovered supermassive black holes residing in the center of dust obscured galaxies. In some cases, the amount of dust is so large that even x-rays from the accreting black holes are absorbed in these systems. This is the result of research done by astronomers [continue reading]

jul 232012
 
Ancient Meteorites Give New Clues to the Early Solar System

  In order to understand Earth’s earliest history–its formation from Solar System material into the present-day layering of metal core and mantle, and crust–scientists look to meteorites. The diogenites originated deep within the crust of Vesta and resemble rocks, both in texture and composition, which we find in the lower crust of the Earth. The [continue reading]