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What is Revised Tunguska Impactor Size Analysis about?

(1) A new simulation using more accurate models suggests that the 1908 Tunguska impactor was smaller than previously estimated, around 40 meters in diameter rather than 60 meters. This implies Tunguska-scale impacts may occur every few hundred years rather than every few thousand years. (2) The Spaceguard Survey has discovered a small asteroid called 2007 WD5 that has over a 1% chance of impacting Mars on January 30th based on current orbital data, in what could be a Tunguska-scale event. However, additio

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MorenaMora

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EN