A 1975 artist's render of the planned Apollo-Soyuz mission. Image: Davis Meltzer/NASA
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Laika the space dog died in orbit, but left a major space race as her legacy.
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The seeds for Apollo-Soyuz were sown in October 1970, when a group of congressmen asked President Nixon to explore cooperation with the Soviets. The mission took shape over the following two years, finally emerging in 1975 as a technical investigation into to two nations’ ability to rendezvous and dock their respective vehicles in orbit.Many engineers and managers were already looking down the line to a cooperative space station project, but this was still a ways off. Not until 1984 did President Reagan green light the International Space Station, and the first module wasn’t launched until 1998.NASA’s background project while the Apollo-Soyuz mission was developed and flew was to revise its spacecraft. The shuttle, properly known as the Space Transportation System, was devised as a way to ferry astronauts to and from an orbital space station. The new vehicle was greenlit by President Nixon in 1972, though he didn’t approve the corresponding station.The shuttle was supposed to make spaceflight routine and cost-effective. The spacecraft’s payload bay dimensions were set by the Department of Defense; it agreed to help cover the program’s cost if NASA launched DOD satellites. The shuttle’s shape was honed to give it a 200 mile cross range capability, something it needed to return to a landing site on America’s west coast after a single orbit mission. It was also reusable, as were parts of its external launch system, which meant a short turnaround time between launches. It was originally expected to fly somewhere around 50 missions per year.
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