An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Astronauts cannot burp in space.
232
41% of the moon is not visible from earth at any time.
103
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Astronauts get taller when they are in space.
224