jan 022013
Magnetic Fields Existed Even Before the First Stars

  Bochum physicist calculates field strengths in the early Universe   The early Universe consisted only of nonmagnetic elements and particles. Just how the magnetic forces came into existence has been researched by Prof. Dr. Reinhard Schlickeiser at the Institute of Theoretical Physics of the Ruhr-Universität Bochum. In the journal Physical Review Letters, he describes [continue reading]

nov 012012
Super-Luminous Supernovae Found in the Very Distant Universe

  Two ‘super-luminous’ supernovae – stellar explosions 10 to 100 times brighter than other supernova types – have been detected in the distant Universe. The discovery, led by Swinburne University of Technology astrophysicist Dr Jeffrey Cooke, and reported online in Nature this week, sets a record for the most distant supernova yet detected. High-resolution simulation of [continue reading]

jun 212012
Cosmic Web of the First Stars Unveiled

  Scientists have discovered a new way to detect the first stars when the Universe was in its infancy at a mere 1% of its present age. The difference between the velocity of dark matter and that of ordinary matter (baryons, i.e., gas consisting of mostly hydrogen and heium). The velocity difference is small in [continue reading]