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.
12
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The earth travels through space at 660,000 miles per hour.
189
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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