Earth is the only planet in our solar system that's not named after a god or goddess.
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A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
It 'snows' metal on Venus.
13
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16