Lecture #19: Falls and Finds
I. Meteors, Shooting stars, and Falling stars
-- falls and finds
-- Antartica finds
-- 1972 event: glancing interaction
-- 1908 event: Tunguska
-- extinctions
II. History of discovery of meteorites
-- Chladni (1794) and Biot (1803)
-- imperfect science vs. nonscience and conspiracies
-- metals from space
-- impact rates and surface dating : craters on the moon
III. Classification of meteorites
-- stones and irons: falls and finds
-- chondrites and chondrules
-- see some pictures of various types here
IV. Origin of meteors
-- parent bodies in the asteroid belt
-- comets
-- planets: Moon and Mars (SNC meteors)