Hawai’i Institute of Geophysics and Planetology

Informational website giving an overview on impact craters, their formation, morphology and subsequent modification.

http://www.spacegrant.hawaii.edu/class_acts/CratersTe.html

Lunar and Planetary Institute

One of the Activity at a Glance lessons that gives educators background information and ideas for fun classroom activities.

http://www.lpi.usra.edu/education/explore/shaping_the_planets/impact_cratering.shtml

http://lpc1.clpccd.cc.ca.us/lpc/astronomy/course_websites/pezzaglia/presentations/20meteor/meteor.pdf

NASA Johnson Space Center

This slide show describes how NASA scientists collect, preserved and study meteorites.

http://ares.jsc.nasa.gov/education/SpaceRocksPresentation.pdf

A group of scientists led by David McKay of NASA's Johnson Space Center published an article in the 16 August 1996 issue of Science magazine announcing the discovery of evidence for primitive bacterial life on Mars.

http://nssdc.gsfc.nasa.gov/planetary/marslife.html

Comets and meteors have been raining debris on Earth for billions of years, and scientists think they just may be the vehicles that carried the "stuff of life" to the planet. Explore the timeline of the Murchison meteorite and the significant discoveries that may begin to answer the question of how life came to be here.

http://www.pbs.org/exploringspace/meteorites/murchison/index.html