nov 062012
 
The Milky Way's Black Hole is Suddenly Eating a Lot More

  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 times as massive. This false-color image shows the central region of our Milky [continue reading]

okt 292012
 
Supermassive Black Hole Inflates Giant Bubble

  Using a brand-new radio telescope, astronomers have produced one of the best images ever made at the lowest frequencies of giant bubbles produced by a supermassive black hole. The observations were performed at frequencies ranging from 20 to 160 MHz which are normally used for communications by airplane pilots. The picture shows what looks [continue reading]

sep 082012
 
New Unified Theory of Dark matter and Dark Energy

  A pair of mathematicians — one from Indiana University and the other from Sichuan University in China — have proposed a unified theory of dark matter and dark energy that alters Einstein’s equations describing the fundamentals of gravity. The Hubble deep field is a picture of the furthest we have ever seen out into [continue reading]

jun 182012
 
Black Holes as Particle Detectors

Previously undiscovered particles could be detected as they accumulate around black holes say scientists at the Vienna University of Technology. Artist’s impression of a black hole, surrounded by axions. Finding new particles usually requires high energies – that is why huge accelerators have been built, which can accelerate particles to almost the speed of light. [continue reading]