Image: Supernova 1994D and the Unexpected Universe
Caption: Supernova 1994D. This Type Ia supernova is in a galaxy at a distance of about 50 million light years in the Virgo cluster of galaxies. For a month, the light from a single exploding white dwarf is as bright a 4 billion stars like the sun.
Source: P. Challis, Center for Astrophysics/STScI/NASA
Credit: High-Z Supernova Search Team, HST, NASA
NSF funded: NO
Website: http://apod.gsfc.nasa.gov/apod/ap981230.html
Source: Robert Kirshner
Speaker at NSF Funded The Universe From the Ground Up Astronomy Symposium
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