The Earth gets 100 tons heavier every day due to falling space dust.
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The heart of an astronaut actually gets smaller when in outer space.
216
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
It 'snows' metal on Venus.
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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
Lightning strikes about 6,000 times per minute on this planet!
158
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
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