Post by ET_Explorer on Jul 12, 2016 3:55:03 GMT
Supernova remnant known as 1993J, which came from a double-star system. A faraway supernova explosion may have contributed to a minor mass extinction here on Earth 2.59 million years ago, a new study suggests.
Fast-moving, charged particles called cosmic rays that were blasted out by asupernova may have played a role in the climatic changes that apparently led to a die-off at the end of the Pliocene epoch and the start of the Pleistocene, researchers said.
Article Source
SN 1993J is a supernova observed in the galaxy M81. It was discovered on 28 March 1993 by F. Garcia in Spain.
Wikipedia SIMBAD
Supernova Explosion Contribute to Earth Mas....kmz (1.25 KB)
Fast-moving, charged particles called cosmic rays that were blasted out by asupernova may have played a role in the climatic changes that apparently led to a die-off at the end of the Pliocene epoch and the start of the Pleistocene, researchers said.
Article Source
SN 1993J is a supernova observed in the galaxy M81. It was discovered on 28 March 1993 by F. Garcia in Spain.
Wikipedia SIMBAD
Supernova Explosion Contribute to Earth Mas....kmz (1.25 KB)