TREKCORE > TOS > EPISODES > ALL OUR YESTERDAYS > Trivia

	Spock tells Zarabeth he came from a world "millions of light-years away." The galaxy is only about 100,000 light-years away - the area the Federation has explored even smaller
	When Spock and McCoy first arrive in the frozen tundra, Spock attempts to use his phaser. It doesn't work and Spock blames the temperature. Yet, in "The Enemy Within," Sulu uses his phaser in 70 below zero temperatures.
	Amazingly, this is the only episode of the classic series, "Star Trek: The Next Generation", "Star Trek: Deep Space Nine", "Star Trek: Voyager" and "Star Trek: Enterprise" to feature no scenes aboard the starship. The only other episode that can make that claim in the "Star Trek: The Animated Series" episode "The Slaver Weapon", which does not feature the Enterprise at all.