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
The population of the Earth has more than doubled since 1950.
151
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
The light hitting the earth right now is 30 thousand years old.
163
Jupiter is bigger than all the other planets combined.
254
Pluto is smaller than Russia.
9
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
Earth is the only planet in our solar system that's not named after a god or goddess.
17