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
The population of the Earth has more than doubled since 1950.
151
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Buzz Aldrin’s mother’s maiden name was Moon.
9
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
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