The population of the Earth has more than doubled since 1950.
151
The Earth gets 100 tons heavier every day due to falling space dust.
673
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
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
A comet's tail always points away from the sun.
2