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
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
NASA invented baby food as we know it today.
7
It 'snows' metal on Venus.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
13
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6