Pluto is smaller than Russia.
9
The sun is 330,330 times larger than the earth!
190
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121