Only 55% of Americans know that the sun is a star.
986
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
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
The earth travels through space at 660,000 miles per hour.
189
Astronauts cannot burp in space.
232
Sound doesn't travel in space.
255