| UPI.com SANTA BARBARA, Calif., Dec. 18 (UPI) — U.S. astronomers say they’ve discovered two supernovas 10 billion light-years from Earth that are 100 times more luminous than a normal supernova. Scientists at the University of California, Santa Barbara, say the … Two New Supernovae Discovered, Stellar Explosions Formed ‘Before The Sun …International Business Times Astronomers Report the Brightest, Most Distant Supernovae Ever DiscoveredNature World News Powerful ancient explosions explain new class of supernovaeSpace Fellowship |
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