The star Betelgeuse is about 425 light-years away. If it explodes tonight:?

  • Thread starter Thread starter KILLZONE
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KILLZONE

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1. We'll know because it will be brighter than the full Moon in the sky.
2. We'll know because debris from the explosion will rain down on us from space.
3. We won't know about it until 425 years from now.
 
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