One of the original Mercury 7 selected in 1959 but sidelined due to a heart condition, Deke Slayton was named for the primary crew for the Apollo-Soyuz Test Project along with Tom Stafford, and Vance Brand #50YearsAgo today.
On Jan. 30, 1973, NASA formally announced the American crew for the Apollo-Soyuz Test Project (ASTP), the first joint human spaceflight between the United States and the Soviet Union, planned for July 1975.
