Presenters: Donn Anderson and John Jennings What to do after Apollo ended? Use and repurpose the hardware planned for the cancelled Apollo 18, 19, and 20 missions into the gigantic for its time Skylab Earth orbiting Solar Observatory and Research Lab that hosted 3 crews for extended stays in space. How did that come about?...

Presenter: Bill Carton Launched in 1958, America's second satellite Vanguard 1 is the oldest known debris still on orbit. Recent estimates are that as many as one hundred million pieces of human-made objects are above the earth now. We are tracking 21,000 items over 10cm in size. Junk includes derelict spacecraft, upper rocket stages, explosion...