In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
If two pieces of metal touch in space, they become permanently stuck together.
808
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Buzz Aldrin’s mother’s maiden name was Moon.
9
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
A comet's tail always points away from the sun.
2
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The population of the Earth has more than doubled since 1950.
151