Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The light hitting the earth right now is 30 thousand years old.
163
The Earth gets 100 tons heavier every day due to falling space dust.
673
Venus is the only planet that rotates clockwise.
310
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Only 55% of Americans know that the sun is a star.
986
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The population of the Earth has more than doubled since 1950.
151