There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
The heart of an astronaut actually gets smaller when in outer space.
216
The population of the Earth has more than doubled since 1950.
151
The light hitting the earth right now is 30 thousand years old.
163
It takes eight and a half minutes for light to get from the sun to earth.
159
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 earth travels through space at 660,000 miles per hour.
189
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