41% of the moon is not visible from earth at any time.
103
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
If two pieces of metal touch in space, they become permanently stuck together.
808