It’s been almost 40 years since Mr. Weiner published this remarkable book as a companion to the TV series and while much of it is dated, a much greater part is still extremely relevant. A typical example is found on p. 253;
“‘When the last astronaut left Skylab in 1976', explains Herbert Friedman of the National Academy of Sciences, ‘it was thought that the spacecraft was in a safe parking orbit where it could await a visit by an early Space Shuttle flight, which would push it to a higher orbit for safekeeping until it could be refurbished and reactivated. Unfortunately, the plan was frustrated by a delay in the Space Shuttle’s schedule and by a rapid rise of solar activity toward sunspot maximum. With high sunspot activity came a hotter and denser atmosphere at Skylab’s altitude, which increased the drag and caused the orbit to decay much faster than anticipated.’ The great, patched, abandoned space observatory came atumbling down. Thus, says Friedman, Skylab fell victim to sunspots. The lab we sent up to study the Sun was cast down by it.”
I remember hearing that Skylab crashed down to Earth because it’s orbit was too low, but I don’t recall actually understanding that sunspot activity precipitated the eventual re-entry.
Lots of amazing info throughout the book.