100 years ago today was the Tunguska explosion in Siberia. What caused it? Antimatter? Meteor strike? Crashing alien space ship? Comet explosion? A tiny black hole? Read all about it here. Or, here at the BBC.
150 years ago today, Charles Darwin and Alfred Wallace's papers titled “On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection” were read at the Linnean Society of London. You can read those two papers here.
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