Lightning strikes about 6,000 times per minute on this planet!
158
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The heart of an astronaut actually gets smaller when in outer space.
216
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
A comet's tail always points away from the sun.
2
Astronauts get taller when they are in space.
224
