I liked this nice video essay by science comedian Brian Malow, who reminisces about the life-long relationships that even those of use who've never gone to space have managed to form with the space shuttle. Bonus: You also get to watch him (successfully) propose to his girlfriend at the Discovery retirement launch back in February. It's touching, sweet, and (I think) speaks to the emotional resonance today's final flight has with a lot of average Americans.
Maggie Koerth-Baker is the science editor at BoingBoing.net. She writes a monthly column for The New York Times Magazine and is the author of Before the Lights Go Out, a book about electricity, infrastructure, and the future of energy. You can find Maggie on Twitter and Facebook.