Astronauts cannot burp in space.
232
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
The light hitting the earth right now is 30 thousand years old.
163
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 typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
Only 55% of Americans know that the sun is a star.
986