3 ms·
Neat coincidence to see this on the front page today. On the train this morning I was re-reading David Brin's "The Deadly Thing at 2.4 Kiloparsecs". His 1984 ar
by Sukotto 9y ago
Neat coincidence to see this on the front page today. On the train this morning I was re-reading David Brin's "The Deadly Thing at 2.4 Kiloparsecs". His 1984 article examining Earth's fairly regular mass extinctions and what might be causing them.
As a new forward to the story, Brin mentions the OP-linked theory.
Imho, the article still holds up well and you can read it here: http://davidbrin.blogspot.jp/2015/07/the-deadly-thing-at-24-kiloparsecs-are.html http://davidbrin.blogspot.jp/2015/07/the-deadly-thing-at-24-...