I See


10 mind-bending facts about the universe

From neutron stars to multiple dimensions to life on other planets, here are cool facts about the universe that might make your brain hurt.

1. The universe contains around 50,000,000,000 galaxies, each of which has between 100,000,000,000 and 1,000,000,000,000 stars.

2. At the speed of light, time stops.

3. Dark matter makes up 83 percent of the matter in the universe, but we can’t see it and we don’t know what it is.

4. Time passes more slowly in orbit around the earth meaning returning astronauts arrive home slightly younger than if they had spent the same amount of time on earth.

5. Atoms are 99.9999999999999999% empty space meaning all the matter making up the entire human race could fit into a sugar cube…



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