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Chasing Supernovae in the Early Universe with HST

Presented by: Steve Rodney (Johns Hopkins University)
Category: Education and Outreach   Duration: 1 hour and 30 minutes   Broadcast date: January 08, 2013
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Most stars (like our Sun) will end their life with a whisper, first by gradually their shedding outer layers and then by slowly cooling over many billions of years. A prominent minority of stars, however, will end with an extraordinary bang: a supernova explosion so powerful and bright that it can be observed from across the cosmos. The Hubble Space Telescope has proven to be an extraordinary tool for studying distant supernovae, finding some billions of light years away, and thus billions of years ago. These distant and early supernovae tell us more than about exploding stars, they are also some of the most important tracers of the expansion of the universe and crucial evidence for the existence of dark energy.

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Chasing Supernovae in the Early Universe PDF document (.pdf)