i was watching a bunch of science videos today on youtube (theyre damn entertaining). i learned that the radius of the universe is 14 gigaparsecs wide. 1 gigaparsec is 3.3 billion light years. 1 light year is 5.88×10^12 miles. 93 billion light years across. thats a ludicrous amount of space and its all full of mostly nothing. the earth is just a small rock floating in all this nothing.
to compare; there are over 1 trillion bacteria on the skin of an average human. these bacteria are about 2×10^-6 meters long. a 6 foot human is 1.83 meters. that means that we humans are almost a […]