Feb. 14, 2013 — In the year 1006 a new star was seen in the southern skies and widely recorded around the world. It was many times brighter than the planet Venus and may even have rivaled the brightness of the Moon. It was so bright at maximum that it cast shadows and it was visible during the day. More recently astronomers have identified the site of this supernova and named it SN 1006. They have also found a glowing and expanding ring of material in the southern constellation of Lupus (The Wolf) that constitutes the remains of the vast explosion.
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It has long been suspected that such supernova remnants may also be where some cosmic rays -- very high energy particles originating outside the Solar System and travelling at close to the speed of light -- are formed. But until now the details of how this might happen have been a long-standing mystery.
A team of astronomers led by Sladjana Nikoli
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It has long been suspected that such supernova remnants may also be where some cosmic rays -- very high energy particles originating outside the Solar System and travelling at close to the speed of light -- are formed. But until now the details of how this might happen have been a long-standing mystery.
A team of astronomers led by Sladjana Nikoli