Comets, Asteroids, and Meteors

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Comets, Asteroids, and Meteors

• Chapter 23 section 5

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Comets

• Chunks of ice and dust whose orbits are usually
  very long, narrow ellipses, possibly born way
  beyond our solar system

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Comets

• As the comet orbits the sun, the solar wind blows
  ice and dust off the comet forming a tail that
  always points away from the sun

4
Comets

• Halleys Comet (last seen in 1986) has a 76 year
  revolution

5
Comets

• Hale-Bopp Comet (1997)

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Asteroid

• Huge rocks that are too numerous and too small to
  be considered planets, one is named Labnow

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Meteor

• Meteoroid- a small asteroid outside of Earths
  atmosphere
• Meteor- a streak of light produced from a meteor
  going through Earths atmosphere

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Meteor

• Meteorite- when a meteoroid hits Earths surface

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Meteor

• Barringer Meteor Crater, Arizona created by
  meteor 150 feet in length

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Life in the Solar System

• Goldilocks conditions- found most closely on Mars
  and Jupiters moon Europa

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Life in the Solar System

• Life on Mars?

Tabloid face Happy face crater Real face