This site consists of JPEG images of the planets, including photographs of Jupiter, Mars, Saturn, historic photographs, and artistic illustrations (montages). Links to other parts of the GRIN image library are provided. Full description.

This resource provides a network of links related to a wide variety of images, photographs, and other multimedia resources from NASA archives. The site is browsable by subject, NASA Center (Goddard, Johnson, etc.), and by keyword. It also includes links to other NASA images sites. Full description.

This site allows users to browse Earth science-themed photographs including 3-D images, historic NASA photographs, and images from satellites and manned space missions. Full description.

This site allows users to browse through a library of JPEG images of the various space missions. The images are grouped under several categories: Human Exploration, the Apollo Program, Robotic Exploration, and General images (launches, landings, satellites). Full description.

This image is part of the U.S. Geological Survey's Water Science for Schools website. Other imagery includes photographs of water being measured and sampled, being used in various ways, and illustrations of how human activity influences the water system. Written descriptions of activities being shown are provided. Links to other parts of the Water Science for Schools website are also present. Full description.

This museum exhibit allows visitors to examine how medical imagery has changed the way we look at our bodies. Exhibits include modern medical imaging, art and artifacts, and historic medical illustrations and models. Full description.

Each day a different image or photograph of a celestial object is featured. Pictures are selected for their particular beauty or astronomical interest, and each one is accompanied by a brief caption written by a professional astronomer. Links to additional information are embedded in the text of the caption. Previous pictures of the day are archived in reverse chronological order dating back to June ... Full description.

This collection of visualizations produced by the NASA Laboratory for Atmospheres includes still images, movies, and 3D/VR images. Viewers can select images of hurricanes and other weather phenomena, the Earth from space, fires, ash clouds, and a space shuttle launch. Links to other sources of imagery are also provided. Full description.

This tutorial provides a basic discussion about crystallography. Text and diagrams explain how crystals are measured, classified, and described, and point out that minerals can be identified by their crystal shapes and growth habits. Full description.

This site explains how core samples are taken from the ocean floor. Topics include how research cruises are planned, who makes up the crew of a research vessel, and what a cruise track is. Links to additional information are embedded in the text. Full description.