- There is no gravity at the center of the Earth.
- A zeptosecond is one-billionth of a trillionth of a second.
- There are about 1,000 chocolate chips in a pound (.45 kilograms).
- Applesauce was the first food eaten in space by an American astronaut.
- An average major league baseball is used for only 6 pitches.
- During the lunar day the surface of the moon can reach well over 200 degrees Fahrenheit (93.3 degrees Celsius).
- Astronauts have grown potatoes on the space shuttle.
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