Five or so years from now, you may be able to witness a new "star"
appearing in the night sky, a cosmic gem that should glitter in the
northern wing of the constellation Cygnus, the swan, for a good
portion of a year. For the first time, astronomers are confidently
predicting that a specific stellar system will explode within a
defined period of time, becoming more than 10,000 times brighter
than it is now. The explosion will be visible from Earth with the
naked eye, and it could be about as bright as Polaris, the North
Star.
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appearing in the night sky, a cosmic gem that should glitter in the
northern wing of the constellation Cygnus, the swan, for a good
portion of a year. For the first time, astronomers are confidently
predicting that a specific stellar system will explode within a
defined period of time, becoming more than 10,000 times brighter
than it is now. The explosion will be visible from Earth with the
naked eye, and it could be about as bright as Polaris, the North
Star.
http://news.nationalgeographic.com/2017 ... e-science/