The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
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
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The population of the Earth has more than doubled since 1950.
151
The earth rotates more slowly on its axis in March than in September.
145
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
It 'snows' metal on Venus.
13