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
When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31
The light hitting the earth right now is 30 thousand years old.
163
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Earth is the only planet in our solar system that's not named after a god or goddess.
17