Astronauts have grown potatoes on the space shuttle.
Four-thousand-year-old noodles were discovered in ancient ruins in China.
Astronauts' footprints stay on the Moon forever; there's no wind to blow them away
Every day is about 55 billionths of a second longer than the day before it.
Belly button lint is made of clothing fibers, hair, and dead skin cells.
Rome's Coliseum could hold 50,000 spectators
Days were only 18 hours long a billion years ago.
A cloud can weigh more than a million pounds
During the lunar day the surface of the moon can reach well over 200 degrees Fahrenheit (93.3 degrees Celsius).
If you eat too many carrots, your skin can turn orange.
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