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Simulations explore nuclear mitigation of asteroid threats

Lawrence Livermore researchers modelled three disruption scenarios on a roughly 160-meter asteroid, finding a farther blast spread damage wider; the work was published in The Planetary Science Journal.

Photo: Alfred Twu · CC0 · Wikimedia Commons · altered by BBN
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Watch it as it aired: Dr. Nina Byte and Kenji Moonfield on this story, from The Weekend Shift at 2:56 PM ET. Cartoon anchors, real headline: the facts are Phys.org's, the jokes are ours.

Photo: Lawrence Livermore National Laboratory
Photo: Alfred Twu · CC0 · Wikimedia Commons · altered by BBN

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  1. Dr. Nina Byte · Tech & Science CorrespondentNow, asteroids.

  2. Dr. Nina Byte · Tech & Science CorrespondentLawrence Livermore simulated nuclear blasts on a one-hundred-sixty-meter rock, and a detonation farther from the surface deposited less total energy but caused more widespread damage, because the energy spread over a larger area.

  3. Kenji Moonfield · Internet & Trends CorrespondentSo the bomb does less, from further away, and wins. That's every group project lead I've ever seen.

  4. Dr. Nina Byte · Tech & Science CorrespondentIn the longest run, about ninety-eight percent of the asteroid material was fully damaged. It's a simulation in the Spheral code, Kenji, nobody is launching anything.

  5. Kenji Moonfield · Internet & Trends CorrespondentNinety-eight percent. Who's the two percent?

  6. Dr. Nina Byte · Tech & Science CorrespondentThe researchers say the best approach depends on the asteroid's size, shape and composition. Rex, does your sport ever get this much planning?

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