Russia 2013 had a very close encounter, and in Russia 1910, we suffered from the Tunguska event where a asteroid blew up in the atmosphere over Russian Siberia. https://www.space.com/33623-chelyabinsk-meteor-wake-up-call-for-earth.html 20 times the money spent. is well worth the cost. Other worries?Yeah Climate.Yeah, Super volcanoes.Finally, Yeah Nuclear. 1st by China, Secondly from Putin piling on.
-----Original Message----- From: John Clark <johnkcl...@gmail.com> To: 'Brent Meeker' via Everything List <everything-list@googlegroups.com> Sent: Wed, Nov 24, 2021 7:44 am Subject: NYTimes.com: NASA Launches New Mission: Crash Into Asteroid, Defend Planet Earth Some may say it's silly for NASA to spend money to protect people from as remote a danger as an asteroid strike but I don't think so. Impact by an asteroid larger than 10 km would kill nearly every human on the planet but one that big only comes along about once every hundred million years, so if you figure a lifetime of 70 years that means there's about one chance in 1.5 million of one of those behemoths killing you. A much smaller asteroid might only kill 1/1000 as many people but it would be about 1000 times more common, so one of those little guys would have about an equal chance of ending your lifetime early. One chance in 700,000 or so may still seem too low to worry about but it's slightly higher than your chances of being killed by a terrorist, and we've already spent many trillions of dollars trying to reduce that figure, so it doesn't seem terribly extravagant to me if NASA spends a few hundred million dollars to try to reduce the asteroid danger. John K Clark ==From The New York Times: NASA Launches New Mission: Crash Into Asteroid, Defend Planet Earth The Double Asteroid Redirection Test spacecraft, launched on Wednesday, could be the first to alter an asteroid’s path, a technique that may be used to defend the planet in the future. https://www.nytimes.com/2021/11/24/science/nasa-dart-mission-asteroid.html?smid=em-share-- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/CAJPayv032wFDjaxK82Az9ZXqgJ_3eq9wRpcD%2BVxebaKe2c%2BT3g%40mail.gmail.com. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/250333208.668992.1637768093013%40mail.yahoo.com.
