Chinese astronomers witnessed a supernova in the 4th century and studies have suggested Supernova remnant G11.2-0.3 was created from it.
from Space.com ift.tt/2bnDQqv
Chinese astronomers witnessed a supernova in the 4th century and studies have suggested Supernova remnant G11.2-0.3 was created from it.
from Space.com ift.tt/2bnDQqv
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