RALEIGH, N.C., Oct. 24 (UPI) -- A NASA space telescope has provided evidence why a supernova recorded by observers 2,000 years ago occurred and why it spread so far and fast, astronomers say.
"This supernova remnant got really big, really fast," Brian J. Williams, an astronomer at North Carolina State University in Raleigh, said of the supernova witnessed and recorded by Chinese astronomers two millennia ago.