CGFA
Moscow University Astro Net: Man Enters Space
This site presents a brief overview and newspaper clip documenting the first manned space mission. Soviet cosmonaut Yuri Alexseyevich Gagarin became the first human in space on April 12, 1961.
Smithsonian Institution
National Air and Space Museum: Apollo 13
This site contains facts and images pertaining to the crew, spacecraft, and mission of Apollo 13.