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Telescope Kepler detected flash before supernova for the first time

Scientists found very special flash in the data from the space telescope Kepler mission. It came before SN2017jgh supernova explosion and can tell a lot about the progenitor star. This is the first time such a flash was detected.

missions icon Kepler 7. 3. 2009 - 15. 11. 2018 Ended: Success

The cause of the supernova was yellow supergiant star at least a billion light years away. The supernova was a type IIb explosion, in which the progenitor star swallows up to about 100 solar radii. In the middle of this bubble there is a hot helium core, that explodes in great supernova.
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