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A single #HAMMER impactor (9-meter-tall, 8.8-ton) could deflect an object βοΈ 90 meters in diameter π by around 1.4 Earth radii with 10 years of lead time β from the time of launch to anticipated Earth impact. If limited to #telescopic π observations, itβs possible that researchers may not be 100 percent certain of an #impact until less than a year before collision π₯. https://www.llnl.gov/article/44186/scientists-design-conceptual-asteroid-deflector-and-evaluate-it-against-massive-potential