The population of the Earth has more than doubled since 1950.
151
41% of the moon is not visible from earth at any time.
103
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Pluto is smaller than Russia.
9
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
More than 20 million meteoroids enter Earth's atmosphere every day.
139
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15