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 last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221