The splashdown was precise, a controlled return to the blue planet. Gerald Carr, Edward Gibson, and William Pogue were back, their 84-day mission complete. They had set a new American endurance record. They had photographed a comet. They had fixed a failing gyroscope with ingenuity and force. The work was done.
Their departure was a quiet one. There were no farewells broadcast to an empty station. They simply closed the hatch on Skylab, a complex of modules that had been home, laboratory, and gymnasium. They undocked their Apollo command module and performed a final fly-around. They looked back at the workshop, its solar arrays catching the sun, its interior now dark. Then they fired the thrusters for the last time.
Skylab was left to its own devices, a 77-ton artifact in a decaying orbit. It was a vessel of pure potential, built for a future of permanent habitation that had not yet arrived. The station was a question mark. It contained the ghosts of three crews, the data from thousands of experiments, the faint scent of human presence. It would circle for five more years, a silent and waiting thing, before its fiery and public demise over the Indian Ocean and Australia. But on February 8, 1974, the human part of its story ended. The station transitioned from a place to an object, from a home to a monument, its purpose fulfilled but its ultimate fate still a matter of physics and time.