100 years ago today, something ‘cosmic’ happened in (or rather ‘over’) Tunguska, in eastern Russia. There are stories and postings about this all over the Internet; Space.com has posted its take here and, of course, Wikipedia weighs in here. The Planetary Society hosted a press conference today; “Target Earth: How Prepared Are We for Another Tunguska?”  Assuming that they … Continue reading The Tunguska event