Stellar explosion sends shrapnel our way

AN EXCESS of high-energy particles hitting Earth may be shrapnel from a stellar explosion 800 light years away.

After analysing the distribution of around 4.3 billion muons detected between June 2007 and March 2008, the IceCube team has found a small but clear excess of cosmic rays coming from the direction of the constellation Vela, hinting that the relatively close Vela supernova remnant may be responsible - but maybe not! It may be, is quite likely to be, detritus from our own cosmic adventure! See above!