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re: What ends life on earth?
Posted on 5/29/21 at 9:06 pm to Retrograde
Posted on 5/29/21 at 9:06 pm to Retrograde
Well, you are leaving out evolution/genetic engineering as a possible cause.
Aliens incredibly unlikely.
Asteroid impact will happen, just a matter of time.
Super virus, meh.
AI, meh.
Large Hadron Collider, LOL.
Solar flare . . . asteroid more likely.
Sun burns out, incredibly optimistic.
Aliens incredibly unlikely.
Asteroid impact will happen, just a matter of time.
Super virus, meh.
AI, meh.
Large Hadron Collider, LOL.
Solar flare . . . asteroid more likely.
Sun burns out, incredibly optimistic.
0
Posted on 5/29/21 at 9:15 pm to Retrograde
8. WMDs
Posted on 5/29/21 at 9:42 pm to MDB
quote:Gamma Rays are about 20 kilometers in width. Earth is moving through space at a speed of about 361 kilometers per second.
Gamma ray burst. It's happen here before. A known species killer.
So if the Earth got hit by a gamma ray, it would last about 1/20th of a second and only hit surface area of 0.251% of Earth. That is, whatever percentage of it managed to penetrate our atmosphere, which, for gamma rays, is like trying to penetrate a wall of 12' thick extruded aluminum.
eta* I forgot to calculate the speed of the star emitting the gamma bursts, which is also moving through space. It would, most likely, be traveling through space in a different direction and possibly at a much higher speed, so with that in mind, the time it would spend on Earth would be reduced to 1/400th of a second or less.
This post was edited on 5/30/21 at 11:43 am
Posted on 5/29/21 at 9:48 pm to Bjorn Cyborg
Phew! Thanks. Glad to know I can scratch gamma ray bursts off my list of worries.
Posted on 5/29/21 at 9:49 pm to Retrograde
Biological warfare will do it IMO.
Posted on 5/29/21 at 10:14 pm to Retrograde
Team politics.
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