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Thread: supernova

  1. #1 supernova 
    Forum Freshman mathformonkeys's Avatar
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    the sun takes 8 minutes for its light to reach earth, right?

    if the sun explodes at 12:00 will humans notice it at 12:08 OR 12:00

    EITHER WAY, it is strange


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  3. #2  
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    The supernova cannot exceed the speed of light, so 12:08.


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  4. #3  
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    if this explosion would be fast as light or faster what is not possible, i think that we would not be able to see this explosion, because when light of this explosion traveled to earth, in the same moment or even faster it would destroyed earth.
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  5. #4  
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    No. Matter cannot travel at, or exceed the speed of light. My guess, we would see it and have roughly 30 minutes.
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  6. #5  
    Forum Masters Degree SuperNatendo's Avatar
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    But if the supernova ejects alot of gamma radiation we would die as soon as we saw it.
    "It's no wonder that truth is stranger than fiction. Fiction has to make sense." - Mark Twain
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  7. #6  
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    Does a supernova eject gamma radiation? And wouldn't the earths magentic field protect us like it normally does?
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  8. #7  
    Forum Freshman John L's Avatar
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    Our sun could not possibly go supernova anyway. It lacks the mass, and does not burn up enough energy to reach even a red giant, for another four billion years.

    However, there are two effects from a supernova. There is the light from the initial explosion, and then there is the blast debris, which travels slower than the speed of light. If a nearby sun were to go supernova, we would know about it via the light signature, well before the blast effect(which is where the real danger comes in) hits us.
    We must all hang together or assuredly we will all hang seperately. -Benjamin Franklin

    http://ai-jane.org/bb/index.php
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