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Unformatted text preview: meteorites) iron-stony meteorites only 1% stony meteorites made up of stone similar to Earths mantle (about 93%) meteorites- meteoroids that hit the Earth 3) comets made up of ice, dust, and rocks tail (or coma) is the solar radiation or solar wind hitting the comet highly eccentric (elliptical) orbit most come from the Oort cloud (outer solar system) leftover debris (solar system formation, ice, rocks) less dense than asteroids velocity is 60-70 km/s - energy released during an impact is about (1/2)mv 2 - large impacts objects (such as asteroids and comets) are called bolides...
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- Spring '08