Jupiter is bigger than all the other planets combined.
254
The Earth gets 100 tons heavier every day due to falling space dust.
673
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
Buzz Aldrin’s mother’s maiden name was Moon.
9
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
It 'snows' metal on Venus.
13