The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
It 'snows' metal on Venus.
13
Summer on Uranus lasts for 21 years.
358
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
Venus is the only planet that rotates clockwise.
310
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Only 55% of Americans know that the sun is a star.
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