This site describes how scientists study comets. This site shows you a night view of the Earth. Earth Today, A Digital View of our Dynamic Planet See digital images of Earth which include its atmosphere, hydrosphere, biosphere, and the Earth at night. Earth's Hydrosphere See images of sea ice and snow. Exploring the Planets Find out all there is to know about the planets on this site.
Asteroids Find out where asteroids are found, how big they are, and why they are studied.
Exploring the Planets, Earth Find interesting data on planet Earth including Earth facts, exploring Earth from orbit, mission to Earth, and an Earth imagery index. Forest Damage in the Czech Republic See landsat images showing pollution damage in the Czech Republic caused by the burning of coal. Geosphere View video images of Earth's geosphere. See plate boundaries and volcanoes. This site includes activities on flight and Bernoulli's Principle.