University of Arizona

The supernova that cried wolf

(Phys.org)—Astronomers are announcing today that a massive star, which they have watched repeatedly mimic a supernova since 2009, has finally exploded for real. The report is being presented to the American Astronomical ...

Jan 09, 2013
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Blip in night sky tells story of cosmic catastrophe

(PhysOrg.com) -- NASA’s Astronomy Picture of the Day, taken by Adam Block of the UA’s Mt. Lemmon SkyCenter, shows the aftermath of a stellar explosion that happened 25 million years ago in an odd-shaped ...

Jan 30, 2012
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