On the Scent of a Pre-Historic Particle Accelerator?

An international team of astrophysicists have used the H.E.S.S. telescopes to uncover the trail of a 10,000 year old supernova at the heart of the Milky Way. In a paper published in Nature (6th February 2006), they describe their discovery of high energy cosmic rays that have been through a cosmic accelerator - such as a supernova.