Earth is fighting a laser duel with the exploding Carina Nebula

Nov 12, 2020
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A really clever methodology to tune optical viewing of distant stars. Much better "fireworks" are in the sky than presently on Earth.
 
Nov 15, 2020
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Not quite a laser "duel" -- at such a great distance, the "target" nebula would not actually be where the lasers are pointing. After some 7,500 years, the laser beams will arrive at some other point in our galaxy, probably some thousands of light years away from the target.
 
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Nov 15, 2020
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Not quite a laser "duel" -- at such a great distance, the "target" nebula would not actually be where the lasers are pointing. After some 7,500 years, the laser beams will arrive at some other point in our galaxy, probably some thousands of light years away from the target.
You're absolutely right
 
Nov 15, 2020
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An addendum to the above comment: the target nebula would probably not be travelling more than half the speed of light, therefore it might travel no more than a few hundred light years in the next 7,500 years.
 

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