SpaceRef - Astronomy - Planets

Earth Fact Sheet - The page at NASA GSFC's National Space Science Data Center (NSSDC) provides detailed information on the planet Earth.

Earth: Data, Images, and Nomenclature - This page from the USGS Solar System Browser provides information on Earth including its physical characteristics, images, and nomenclature associated with surface features. Presented by the U. S. Geological Survey Flagstaff Field Center.

Earth: Facts and Images - This page from NASA JPL's "Welcome to the Planets: provides basic physical facts about Earth and its moon and a selection of satellite photos with descriptions.

Planetary Photojournal Images of Earth and its Moon - This page at NASA's Planetary Photojournal provides access to a database of images of Earth and its moon from solar system exploration programs and other sources. Images are available in sizes ranging from small web images to large, publication quality files.