Meteorites4-1 - Meteorites-4/1/08...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Meteorites—4/1/08 Meteorites—extraterrestrial material that strikes the surface of the earth Meteoroid—before it hits the earth, when its in the sky o Can travel 60 miles per second in space o Slow down when they hit our atmosphere When it enter the Earth’s atmosphere… o Encounters friction o Causes ionization (glow) violent form of burning o Most burn up completely before they make it to the surface of the earth Examples of meteorites o 1996—Mars Meteorite Found signs of life on the meteorite; protein coat of bacteria o 1954—14 pound meteorite smashed into roof in Alabama…bounced off radio and hit homeowner in the head o Most meteorites found in Antarctica o Leonid Meteor Shower—comes from a comet, little pieces spray off the comet Classification o Stones Formed by: primitive materials in solar nebula (early in solar system history) Composed of: chondrules- minerals found Earth and some amino acids o Stony Irons
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/07/2008 for the course ENV 114 taught by Professor Cole during the Spring '08 term at Northeastern.

Page1 / 4

Meteorites4-1 - Meteorites-4/1/08...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online