One thought on “You’re going to miss us when we’re gone

  1. The scale of the solar system is even more mind-blowing. Using a grain of sand to represent the sun, the closest star is another grain of sand 5 miles away.The distance between galaxies is unimaginably immense.The average density of the universe is estimated a 1 to 3 hydrogen atoms per square meter.The universe is mostly nothing.


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