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Asteroids, Comets, Meteoroids, Meteorites and Meteors
Transcript of Asteroids, Comets, Meteoroids, Meteorites and Meteors
Holt Science & Technology Earth Science
Glencoe Science, South Carolina Science, Grade 8
The King Fisher Science Encyclopedia Scientist study asteroids to learn how Earth was made and from what materials. Asteroids hang out in the asteroid belt which is between the orbit of Mars and Jupiter. The gravity of Jupiter keeps them in orbit. Asteroids have irregular shapes and sizes. Their color can be any where from a brownish red to to dark grey. Our only close up views have been provided by two space probes, Galileo and the NEAR. Asteroid paths are monitored by scientist using telescopes such as the Hubble Space telescope at NASA and other observites. They are monitored to protect Earth from any collision. NASA monitors from varis observatories. Scientists have gotten us their composition information through The Hubble Space Telescope, International Cometary Explorer, and Stardust Comets have very elongated orbits. When comets get close to the sun, they can develop one or two tails. Meteor Meteor: a meteoroid that burns up in Earth's atmosphere. Meteorite Meteorite: a meteoroid that strikes the surface of a moon or planet. Compare & Contrast Similarities: They all orbit the sun. They are all remnants of the formation of the solar system They are all smaller than the smallest dwarf plant. They can all be seen from Earth at some point. They are all with out an atmosphere bound by gravity Asteroids come from the warmer inner solar system.
Comets form tails where as Asteroids don't form tails.
Meteorites go to Earth without burning.
Meteors get bright streaks and burn up.
Comets orbit the sun in Kuiper Belt and Oort Cloud
Asteroids orbit the sun in the Asteroid Belt, between Mars and Jupiter. Asteroids gravity is to weak to have a huge impact on Earth and do alot of harm. The path Asteroids take are ellipse. Inserts Google Images