If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
Pluto is smaller than Russia.
9
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
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
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
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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