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Originally Posted by goblinmob
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What? How does that work? I'm too lazy to research any real facts about anything but I say I can believe that they could pinpoint the "absence" of this ability from any evidence around. I think the part I feel skeptical about is believing that we do have the ability. Like your big cousin saying he can do a backflip. Like, do we have lasers that can do this, or?..
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theoretically yes we could build a laser for asteroid defense, but it's not necessary
it depends on how long we have to prepare for impact. if its very short, like less then a few months then we have no choice but to nuke it. all physicists say this is a bad idea because it turns a bullet into buckshot, but if it's your last resort you gotta do it
other plans range from things like landing a rocket to fire a booster and push the asteroid off course, all the way to to painting it with a reflective material to change it's albedo so that solar radiation will push it off course
NASA's DART spacecraft recently impacted an asteroid as a test, and Japan's Hayabusa2 landed on one
It's gonna take alot more than what hit the dinosaurs to wipe out humanity
I'm of a belief that we definitely could prevent it, unless it takes a very specific path from behind the sun where we basically have no chance of seeing it before its entirely too late
there is now a 6th branch of the U.S. Military which is tasked with this type of defense, and the US military has a tendency to accomplish literally anything it wants to