Space
- 441
- Vanguard: A History
- Story of the Vanguard satellite program. Discusses the planning, setbacks, successes, and launchings, and includes effects of individual and mass psychology.
- 442
- JAXA - TRMM
- Information, photos, and data from the Earth Observation Research Center of Japan Aerospace Exploration Agency.
- 443
- Wikipedia - Tropical Rainfall Measuring Mission
- Includes an overview of the program and summary of specifications.
- 444
- Chronology of Mars Exploration
- Overviews of every mission to Mars since 1960, including planned future missions.
- 449
- On Mars: Exploration of the Red Planet 1958-1978
- A NASA history book on the Viking and Mariner missions. Discusses the motives for these programs and the evolution of hardware. Includes information on the search for life on Mars, spacecraft assembly, landing site selection, and experiments performed on the Martian surface.
- 456
- MESSENGER
- The official site for the MErcury Surface, Space ENvironment, GEochemistry, and Ranging mission. Includes details of mission and spacecraft design, team member profiles, news, and data.
- 458
- Ranger
- Information, images, and mission data on the Ranger series, was the first U.S. attempt to obtain close-up images of the Lunar surface.