United States Government Earth Sciences Data Centers

• Alaska Satellite Facility  - Contains details on data products, software tools and special projects.
• NASA Earth Observing System Data and Information System  - Focused on managing and distributing information on NASA’s past and current research satellites and field programs.
• NASA Goddard Earth Sciences Data and Information Services Center  - Access to a wide range of Earth science data, information, and services. Image gallery included.
• NOAA National Climatic Data Center  - Provides access to the world's largest online climate data collection.
• NOAA National Geophysical Data Center  - Access to scientific data about the sun and the earth.