Astronauts get taller when they are in space.
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It takes eight and a half minutes for light to get from the sun to earth.
159
The population of the Earth has more than doubled since 1950.
151
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
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
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127