The population of the Earth has more than doubled since 1950.
151
Only 55% of Americans know that the sun is a star.
986
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
It would take more than 150 years to drive a car to the sun.
569
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The earth travels through space at 660,000 miles per hour.
189
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46