Shampoo in the Space Station (Episode: "Homer the Space Man", 1999)

The Simpsons has earned quite the reputation for seemingly predicting the future. It’s actually a bit of a meme at this point, with fans pointing out how many things in the real world appear to have been "predicted" by the show, sometimes years in advance. While some of these predictions are purely coincidental or the result of broad satire, others do seem oddly prescient.

Shampoo in the Space Station (Episode: "Homer the Space Man", 1999)

• What happened: Homer becomes an astronaut and uses a bottle of shampoo to wash his hair in space. This scene feels like a parody of space oddities.
• Reality: In 2019, astronauts aboard the International Space Station made history by using "shampoo" in zero gravity for the first time in a formal experiment about hygiene in space.