The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
It would take more than 150 years to drive a car to the sun.
569
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Astronauts get taller when they are in space.
224