The earth rotates more slowly on its axis in March than in September.
145
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
The light hitting the earth right now is 30 thousand years old.
163
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
The heart of an astronaut actually gets smaller when in outer space.
216
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 sun puts out more power in 1 second than mankind has ever used within human existence.
14
The population of the Earth has more than doubled since 1950.
151