The earth travels through space at 660,000 miles per hour.
189
Astronauts get taller when they are in space.
224
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
Pluto is smaller than Russia.
9
The population of the Earth has more than doubled since 1950.
151
Only 55% of Americans know that the sun is a star.
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Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14