The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
It would take more than 150 years to drive a car to the sun.
569
A comet's tail always points away from the sun.
2
The population of the Earth has more than doubled since 1950.
151
If two pieces of metal touch in space, they become permanently stuck together.
808
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88