Supernova mystery: Why PS1-10afx appeared so much brighter than the sun. (Video.)
The Secret to Why a Supernova Appeared 100 Billion Times Brighter Than the Sun (Video) 
The state of the universe.
April 29 2014 4:14 PM

A Supernova’s Secret

Why did PS1-10afx appear 100 billion times brighter than the sun?

Using a Keck telescope in Hawaii, a team in the journal Science says they’ve figured out why a strange supernova appeared so exceptional—it seems it got a little help on its way to Earth. 

Paca Thomas is a regular video contributor to Slate.

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