The moon has mirrors on it. They were left there by astronauts who wanted to bounce laser beams off them, so that the distance to the moon could be measured.
The term "honeymoon" is derived from the Babylonians who declared mead, a honey-flavored wine, the official wedding drink, stipulating that the bride's parents be required to keep the groom supplied with the drink for the month following the wedding.
Just twenty seconds worth of fuel remained when Apollo 11's lunar module landed on the moon.
It takes about 1.25 seconds for moonlight to reach the Earth.
By measuring the ages of lunar rocks, we know that the moon is about 4.6 billion years old, or about the same age as Earth.
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