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
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The population of the Earth has more than doubled since 1950.
151
A comet's tail always points away from the sun.
2
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Astronauts cannot burp in space.
232