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Is it possible for our sun to become a supernova?

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A supernova would need to go off within a distance of 100 light-years to irradiate our planet. According to Dr. Phil Plait from Bad Astronomy, the closest star that could detonate as a supernova is the 10 solar mass Spica, at a distance of 260 light-years. No where near close enough to cause us any danger. read more

A star that is at least five times bigger than our Sun can become a supernova. Image above: After becoming a red giant, a small star will become a white dwarf and a large star will become a supernova. read more

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