If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
It would take more than 150 years to drive a car to the sun.
569
A comet's tail always points away from the sun.
2
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
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Jupiter is bigger than all the other planets combined.
254