The earth rotates more slowly on its axis in March than in September.
145
The heart of an astronaut actually gets smaller when in outer space.
216
41% of the moon is not visible from earth at any time.
103
There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
Sound doesn't travel in space.
255
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
If you went out into space, you would explode before you suffocated because there's no air pressure.
149