THIS DAY IN SPACE

Apollo–Soyuz Docking
On July 17, 1975, U.S. and Soviet space modules Apollo and Soyuz docked in orbit during the Apollo–Soyuz Test Project (ASTP), marking the first international human spaceflight mission. Astronauts Thomas Stafford, Deke Slayton, and Vance Brand from the U.S. were joined by Soviet cosmonauts Alexei Leonov and Valeri Kubasov in a historic rendezvous above Earth. This mission was not only a major technological achievement—requiring docking systems to be adapted to different spacecraft designs—but also a political milestone. Taking place during the Cold War, it symbolized détente and the possibility of peaceful cooperation in space. The crews exchanged gifts, conducted joint experiments, and held a symbolic handshake in space, which became a powerful image worldwide. ASTP paved the way for future collaborations such as the Shuttle-Mir program and the International Space Station.

Launch of Soyuz TM-15
Soyuz TM-15 was launched on July 17, 1992, carrying a Russian-French crew to the Mir space station. Russian cosmonauts Anatoly Solovyev and Sergei Avdeyev, along with French astronaut Michel Tognini, participated in the mission as part of the 'Antares' program—a cooperative venture between CNES (France’s space agency) and Roscosmos. Tognini conducted numerous biological and materials science experiments aboard Mir, expanding the scientific output and showcasing international partnerships even in the post-Cold War era. The mission emphasized how Mir continued to evolve as a hub for joint operations, helping to lay the groundwork for future international space station frameworks.