Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
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NASA invented baby food as we know it today.
7
When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31
Earth is the only planet in our solar system that's not named after a god or goddess.
17
A comet's tail always points away from the sun.
2