* CrowningMomentOfAwesome: The Last Question
* DeathOfTheAuthor: One of Asimov's favorite stories, "The Martian Way", was a way of using his claustrophilia as an attack on Joseph [=McCarthy=]. In it, a [=McCarthy=] counterpart named "[[NamesToRunAwayFromReallyFast Hilder]]" is almost able to become Global Administrator at the cost of space development. Nuclear "proton micropiles" are used to produce energy almost for free, and are used in pumped steam rockets to colonize the solar system - so Hilder whips up [[YouCanPanicNow scare reports]] on how space travel will eventually turn the Earth into a desert. Asimov's Martians, being immune to SpaceMadness due to their upbringing as claustrophillic SpacePeople, are able to make a three-year trip to Saturn, retrieve a cubic mile of ice from its rings, and return in time to make a complete fool of a visiting bureaucrat who states for the record that Earth cannot spare a single drop of its ''one and a half quintillion[[note]]'''1,500,000,000,000,000,000'''[[/note]] tons of water''. As an attack on [=McCarthy=], it flopped. As a modern-day attack on environmental alarmism, it ''works''. The ironic part is that ''Asimov was an outspoken environmentalist.''
* FanonDiscontinuity: ''Foundation and Earth'' is basically just an excuse for a big crossover with the Robots series and doesn't make much sense compared to the earlier Foundation books.
* TearJerker - The Ugly Little Boy