Only 55% of Americans know that the sun is a star.
986
Lightning strikes about 6,000 times per minute on this planet!
158
If two pieces of metal touch in space, they become permanently stuck together.
808
Today's top fuel dragsters take off with more force than the space shuttle.
120
The Earth gets 100 tons heavier every day due to falling space dust.
673
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9