Earth is the only planet in our solar system that's not named after a god or goddess.
17
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
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The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The light hitting the earth right now is 30 thousand years old.
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In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Summer on Uranus lasts for 21 years.
358
The earth travels through space at 660,000 miles per hour.
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