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
Astronauts get taller when they are in space.
224
The population of the Earth has more than doubled since 1950.
151
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
The Earth gets 100 tons heavier every day due to falling space dust.
673