French astronomer Adrien Auzout had once considered building a telescope that was 1,000 feet long in the 1600s. He thought the magnification would be so great, he would see animals on the moon.

More people are allergic to cow's milk than any other food.

Between 1979 and 1999, the planet Neptune was farther from the Sun than Pluto. This won't happen again until 2227.

AMAZING FACTS