The population of the Earth has more than doubled since 1950.
151
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
Sound doesn't travel in space.
255
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
A comet's tail always points away from the sun.
2