Jupiter is bigger than all the other planets combined.
254
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 comet's tail always points away from the sun.
2
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
If you went out into space, you would explode before you suffocated because there's no air pressure.
149