There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The earth travels through space at 660,000 miles per hour.
189
Buzz Aldrin’s mother’s maiden name was Moon.
9
It takes eight and a half minutes for light to get from the sun to earth.
159
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
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