The Earth gets 100 tons heavier every day due to falling space dust.
673
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
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
The light hitting the earth right now is 30 thousand years old.
163
Sound doesn't travel in space.
255
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The earth rotates more slowly on its axis in March than in September.
145
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160