Astronauts cannot burp in space.
232
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
It would take more than 150 years to drive a car to the sun.
569
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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