FLASHBACK: What if the moon landings had continued past Apollo 17? Space stations and moon bases in the 1970s and people on Mars in the 1980s. We wasted many times what that would have cost on social programs of dubious provenance and still more dubious benefits, as it turned out.

Related (From Ed): “The decision to end hardware production was made by Congress in 1967,” Rand Simberg tweeted on Thursday, adding that John M. Logsdon “recently wrote definitive history,” with his 2015 book, After Apollo? Richard Nixon and the American Space Program. “Nixon canceled 18 & 19 (latter was to free up a Saturn for Skylab), but they feared crew loss was inevitable if they continued long past 13,” Rand noted in a follow-up tweet.