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Description
Skylab 4 was the first United States space station, launched by NASA, occupied for about 24 weeks between May 1973 and February 1974. It was operated by three separate three-man crews: SL-2, SL-3 and SL-4. Major operations included an orbital workshop, a solar observatory, Earth observation, and hundreds of experiments.
Unable to be re-boosted by the Space Shuttle, which was not ready until the early 1980s, Skylab burned up in the Earth's atmosphere in 1979, over the Pacific Ocean.
Background:
Rocket engineer Wernher von Braun, science fiction writer Arthur C. Clarke, and other early advocates of crewed space travel, expected until the 1960s that a space station would be an important early step in space exploration. Von Braun participated in the publishing of a series of influential articles in Collier's magazine from 1952 to 1954, titled "Man Will Conquer Space Soon!". He envisioned a large, circular station 250 feet (75m) in diameter that would rotate to generate artificial gravity and require a fleet of 7,000-ton (6,500-metric ton) space shuttles for construction in orbit. The 80 men aboard the station would include astronomers operating a telescope, meteorologists to forecast the weather, and soldiers to conduct surveillance. Von Braun expected that future expeditions to the Moon and Mars would leave from the station.
The development of the transistor, the solar cell, and telemetry, led in the 1950s and early 1960s to uncrewed satellites that could take photographs of weather patterns or enemy nuclear weapons and send them to Earth. A large station was no longer necessary for such purposes, and the United States Apollo program to send men to the Moon chose a mission mode that would not need in-orbit assembly. A smaller station that a single rocket could launch retained value, however, for scientific purposes. (from Wikipedia).
Photo: 1974 779-988/13, # JSCL-123.
Other Subjects: Space, Stars, Astronomy, Planets, Earth, Moon, Mars, Solar System, Aerospace, Astronauts, Satellites, Rockets, Exploring, Apollo Program, Gemini Program, Mercury Program
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