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
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Astronauts cannot burp in space.
232
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Astronauts get taller when they are in space.
224
Summer on Uranus lasts for 21 years.
358