By Maggie Mooney
Some Comet Facts
- Scientists have found 4,000 comets and think there are about millions more.
- Comets are formed in Neptune's orbit and take 200 years to orbit the sun.
- Scientist think a comet had fallen 48 million years ago in the sharia desert.
- In 2006 a NASA space craft got a sample of a comet and it had amino acid glycine.
- The nucleus of a comet is made of ice dust and rock
- The fuzzy cloud surrounding a comet's nucleus is called a coma.
- When comets get close to the sun solar winds pull and the sun's magnetic field pull particles from the coma into trails that stretch behind comets.
- Comets are thought to support life.
- comets create parts meteor showers
- Comets can go extinct.