How close a supernova would have to be to wipe out all life on Earth
Supernovas are created during the last moments of a star’s life. These gigantic explosions can wipe out galaxies and the planets inside them. Should we be concerned about one being too close to our Solar System? Following is a transcript of the video.
The cosmos can be a dangerous place for life. About every 50 years a star explodes in our home galaxy, the Milky Way. These powerful eruptions are called supernovae.
They can emit the same energy in a single instant that our sun will generate in over 1 million years. Needless to say, if a supernova goes off close enough …read more
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