Space Rocket History #429 – Skylab – Skylab 4 – Solar Observations and the Last EVA

The next time an American would venture outside of a spacecraft would be on a Space Shuttle flight and that was nine years later. In less than a decade, from June 1965 to February 1974, American astronauts had learned to effectively work in Earth orbit, had left their footprints on the moon, and had walked in space.