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The original was posted on /r/science by /u/mvea on 2024-09-23 16:39:15+00:00.

Original Title: Nuclear blast could save Earth from large asteroid - US physicists show how immense pulse of radiation could vaporise the side of asteroid and nudge it off course, in a new paper in Nature Physics. The strategy should work for asteroids up to 2.5 miles wide but that is not a hard upper limit.