feb 182013
 
Studying Supernova Shocks In Situ in our own Solar System

  During a chance encounter with an unusually strong blast of solar wind arriving at Saturn, the international Cassini spacecraft detected particles being accelerated to ultra-high energies, similar to the acceleration that takes place around supernova explosions.  Saturn, the second largest planet in our Solar System. Image Credit: NASA/JPL/Space Science Institute Shock waves are commonplace in [continue reading]

jul 062012
 
The First "Middleweight" Black Hole is Found

  Observations with CSIRO’s Australia Telescope Compact Array have confirmed that astronomers have found the first known “middleweight” black hole. Galaxy ESO 243-49, about 300 million light-years away, is home to the newly found black hole. Credit: NASA, ESA and S. Farrell (University of Sydney) Outbursts of super-hot gas observed with a CSIRO radio telescope [continue reading]