June 30 is Asteroid Day, being the anniversary of the 1908 Tunguska event.

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June 30 is Asteroid Day, being the anniversary of the 1908 Tunguska event.

Let’s pretend we’re still in June, for two reasons: Continue reading “Stony Tunguska and the Commonest Comet”
June 30 is supposed to be Asteroid Day, in commemoration of the Tunguska Event Continue reading “Asteroid Day”