Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
The earth rotates more slowly on its axis in March than in September.
145
It 'snows' metal on Venus.
13
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The Earth gets 100 tons heavier every day due to falling space dust.
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