February 15, 2013
How to Avoid Asteroid Armageddon
Babbage, The Economist
WORRYING about the threats posed by space rocks has traditionally been the preserve of the paranoid. No one doubts that asteroids have hit Earth in the past, with nasty consequences, but because the chances of any such event happening in a given year are so low, most people have been content to ignore the risk.
TAGGED: Carl Sagan, nuclear missiles, lasers, asteroid response