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
Sound doesn't travel in space.
255
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Astronauts cannot burp in space.
232
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
The sun puts out more power in 1 second than mankind has ever used within human existence.
14