This site contains information about snow, glaciers, permafrost, sea ice and cryospheric trends. The cryosphere is the portion of the Earth's surface where water is in a solid form, usually snow or ice. Seasonal snow cover, the largest component of the cryosphere, covers up to 33 percent of the Earth's total land surface. Glaciers and ice sheets cover about 10 percent of the Earth's land area. Nearly ... Full description.

This NASA Module investigation compares and contrasts physical processes that occur on Both Earth and Mars. Students are given unidentified images of Earth and Mars. Their task is to arrange the images into pairs that show evidence of similar physical processes. Then they identify each image as one of Earth or of Mars by comparing and contrasting physical features that they observe in the image pairs. ... Full description.

This article describes ice worms (Mesenchytraeus solifugus) that live on glaciers in southern Alaska, the Coastal range and British Columbia, and in the Olympics and North Cascades as far south as Mt. St. Helens. Pictures of the ice worms and information on their habitat, physiolology, diet, and behavior are provided. Full description.

This collection of lithographs includes downloadable, printable pictures and information about Earth and its Moon (including the famous 'blue marble' photo of Earth taken by the crew of Apollo 17), the other planets of the solar system, their moons, the sun, the Kuiper belt, and the Oort cloud. Full description.

This non-mathematical, self-contained exposition of studies of the Earth's magnetic environment in space covers such topics as magnetism, electrons, eons and plasmas, the radiation belt, the sun and the solar wind, exploring earthspace, the dynamic magnetosphere, auroras, and interplanetary field lines. Many of the topics introduce the user to the related physics and astronomy, and are thus a useful ... Full description.

This Web site hosts the most complete online collection of astronaut photographs of the Earth, including over 600,000 photos from Space Shuttle and the International Space Station. Users can search the database of photos by geographic coordinates or region, mission, features, cloud cover and many other options. The site also features an image of the week, as well as special collections of images, ... Full description.

This is an image of Mars taken by the Hubble Space Telescope. You will also find information about the climate and weather conditions on Mars. Full description.

This Web site explores the desire shared by past civilizations and today's society to observe and study the sun. It features two interactive modules, which include satellite images, aerial photographs, panoramic pictures, time-lapse videos and other multimedia. Each module is focused on a different ancient culture: Maya in the Yucatan and Native Americans in Chaco Canyon. The site is a collaboration ... Full description.

Hubble Snaps Orion in Picture-Perfect Glory is an article from the Amazing Space science newspaper, The Star Witness. The articles reflect the content of current Hubble Space Telescope press releases but are written foe upper elementary to early middle school students. These science content readings identify and define scientific words and phrases that might be new to the student. Discussion questions ... Full description.

This CD-ROM is a reproduction of the out-of-print textbook by the same name developed for the undergraduate to graduate level Earth systems science major to study landforms and landscapes. It presents in-depth coverage of geomorphology as a discipline and the use of satellite imagery in observation, study, and interpretation. It contains a gallery of 237 color and black and white plates of space imagery, ... Full description.