35th anniversary of Apollo-Soyuz Test Project was celebrated in Moscow. Pictured: U.S. astronaut Vance Brand at the press conference in Moscow. On July 15, 1975, the Soyuz-19 spacecraft with cosmonauts Alexei Leonov and Valery Kubasov onboard lifted off from the Baikonur Space Center in the Soviet Union at 3.20 p.m. Moscow time. Seven-and-a-half hours later, the Apollo-18 spacecraft with U.S. Astronauts Thomas Stafford, Vance Brand and Donald “Deke” Slayton onboard lifted off from Cape Canaveral, Florida. Soviet and U.S. crews visited each other’s spacecraft and conducted scientific experiments during their joint flight.