Asteroid Impacts
Transcription
Asteroid Impacts
Asteroid Impacts Debris in the Solar System Comet Hale-Bopp Comet Borrelly Phoebe Earth in the Sights The Little Ones Willamette meteorite at AMNH Chicago, March 2003. 10 cm Rate: 1/house/107 years Peekskill NY 1992 Near Misses Grand Tetons, 1972 Asteroid 2004 MN4: will miss by 30,000 km in 2029 Asteroid 2004 FH: missed by 42,500 km on March 19, 2004. 30m diameter. Probably would have burned up. Asteroid 2002 EM7: missed by 480,000 km on 3/8/2002. Diameter 70 m. One this size hits every 6400 years. Tunguska was this size. Asteroid 1950 DA: 0.3% chance of hitting on 3/16/2880. 1.1km diameter When The Big One Hits And it Has Barringer crater, Arizona Chicxulub crater, Yucatan Manicouagan crater, Manitoba