"Defies Everything We Thought We Knew" --Star Explodes as Supernova 50 Years Ago, Explodes Again in 2014 - The Daily Galaxy --Great Discoveries Channel

"Defies Everything We Thought We Knew" --Star Explodes as Supernova 50 Years Ago, Explodes Again in 2014 - The Daily Galaxy --Great Discoveries Channel:
"It's the celestial equivalent of a horror movie villain--a star that wouldn't stay dead. 
An international team of astronomers including Carnegie's Nick Konidaris and Benjamin Shappee discovered a star that exploded multiple times over a period of 50 years.
The finding, published by Nature, completely confounds existing knowledge of a star's end of life, and Konidaris' instrument-construction played a crucial role in analyzing the phenomenon.
...This analysis indicated that the explosion was what's called a type II-P supernova, and everything about the discovery seemed normal. 
Until, that is, a few months later when the supernova started getting brighter again..."
Read on!