The two crews remained docked for approximately 44 hours , conducting joint scientific experiments, sharing meals, and exchanging gifts. The Crew Members American Crew (NASA) Soviet Crew Commander Thomas P. Stafford Alexey A. Leonov Flight Engineer/Pilot Vance D. Brand Valery N. Kubasov Docking Module Pilot Donald K. "Deke" Slayton [Sources: NASA, Spaceline] Technical Innovations & Challenges Apollo-Soyuz Test Project - NASA

On July 17, 1975, the two spacecraft docked 138 miles (222 km) above Earth. Mission commanders Thomas Stafford (USA) and Alexey Leonov (USSR) performed the historic "handshake in space" through a specialized docking module.

Launched on a Saturn IB rocket from Kennedy Space Center, Florida.

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