The Aeronomy of Ice in the Mesosphere (AIM) "satellite mission will explore Polar Mesospheric Clouds (PMCs), also called noctilucent clouds, to find out why they form and why they are changing." The website illustrates this NASA project's scientific goals, six objectives, and importance. Users can find a list of publications and links to related news stories and articles about the project. Through...

At this website, the Belgian Institute for Space Aeronomy discusses its contributions "to the knowledge of the atmospherical environment from the Earth to the Sun." Created for all levels of expertise, this Web site is broken down into two main sections: a Public link and a Science link. Through the Science section, researchers can learn about the Institute's abundant projects dealing with the...