Our technologies are on the verge of being able to save us. But it will be close.
Sign Upis a satirical send up of two astronomers’ attempts to warn an indifferent world to the civilization-ending threat of an imminent asteroid impact. After its release, the film generated the most Netflix viewing hours in a single week.
Another option is to attempt to vaporize the asteroid. This means converting it from a solid to a presumably harmless gas. That requires significant amounts of energy and Lubin and Cohen quickly show that this needs at least 50 times the entire world’s nuclear arsenal. “So, definitively NO, we cannot vaporize our target with nuclear weapons,” they conclude.
The plan is complex. First, these weapons would need to be launched towards the asteroid on the world’s most powerful rockets. These would include NASA’s moon capable Space Launch System or SpaceX’s Starship, both soon to be operational. “The blast displaced around 1.12 × 1010 kg of soil and created a crater about 390 meters in diameter and 100 meters deep,” say the researchers. It reportedly lifted the displaced earth in a dome 90 meters high.
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