The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The sun is 330,330 times larger than the earth!
190
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Astronauts get taller when they are in space.
224
If two pieces of metal touch in space, they become permanently stuck together.
808
Some asteroids have other asteroids orbiting them.
131
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219