What Happens When A Meteor Strikes Earth? скачать в хорошем качестве

What Happens When A Meteor Strikes Earth?

Most of the near earth objects that approach Earth burn up in our atmosphere. What happens to the ones that don’t? Read More: Huge Tunguska Explosion Remains Mysterious 100 Years Later http://www.space.com/5573-huge-tungus... “A full century after the mysterious Tunguska explosion in Siberia leveled an area nearly the size of Tokyo, debate continues over what caused it.” Near Earth Objects & Impact Effects http://spaceguardcentre.com/what-are-... “Near Earth Objects are asteroids or comets that have orbits around the Sun that bring them close to the Earth. The actual definition of an NEO is a comet or asteroid whose orbit brings it close to Earth’s orbit. The criterion is a perihelion distance 1.3 AU.” An analysis of the physical, chemical, optical, and historical impacts of the 1908 Tunguska meteor fall http://www.sciencedirect.com/science/... “A detailed analysis of the physical nature and photochemical after effects of the explosive cometary meteor Tunguska is presented.” Getting a Handle on How Much Cosmic Dust Hits Earth http://www.universetoday.com/94392/ge... “Estimates vary of how much cosmic dust and meteorites enter Earth’s atmosphere each day, but range anywhere from 5 to 300 metric tons, with estimates made from satellite data and extrapolations of meteorite falls.” ____________________ DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily. Watch More DNews on TestTube http://testtube.com/dnews Subscribe now! http://www.youtube.com/subscription_c... DNews on Twitter   / dnews   Trace Dominguez on Twitter   / tracedominguez   Julia Wilde on Twitter   / julia_sci   DNews on Facebook   / discoverynews   DNews on Google+ http://gplus.to/dnews Discovery News http://discoverynews.com Download the TestTube App: http://testu.be/1ndmmMq