Filed under: Astronomy, Bad Astronomy, Connections, Fireworks, Gene Roddenberry, Man Conquers Space, NASA, Phil Plait, Predictions, Science, Science Fiction, Society, Space, Star Trek, Survival, YouTube | Tags: Bad Astronomy, Bill Nye, blogging, jim downey, NASA, Neil deGrasse Tyson, predictions, science, Science Fiction, space, Star Trek, video, www youtube
Unsurprisingly, this has been making the rounds among my friends:
As noted in the various science stories, 2012 DA14 is about 150 feet in diameter, and would have about the same effect were it to hit the Earth as Meteor Crater, depending on the exact composition, speed and angle of approach of the meteor. If you want to play with the variables, here’s a simulator I’ve had fun playing with in the past Impact: Earth!
On one end of the range of effects would be just another bright light in the sky, as the thing exploded in the upper atmosphere. On the other end, another mile-wide crater where a city used to be. Fun, eh? And remember – 2012 DA14 was just discovered last year, and then by pure chance. There are any number of such potential threats out in space. As the Washington Post puts it:
For the foreseeable future, then, Earth will continue to reside in a cosmic shooting gallery with an enormous number of currently unknown objects, some of which may have a direct bead on us without our knowing. While it is probably much more unlikely than likely, a potentially disastrous collision with an asteroid of at least the dimensions comparable to DA14 could occur anytime possibly with little or no warning in our lifetimes.
Keep your fingers crossed that our luck — and our atmospheric ‘shields’ — continue to hold until we no longer have all of our eggs in this particular basket.
Leave a Comment so far
Leave a comment