Sound doesn't travel in space.
255
Earth is the only planet in our solar system that's not named after a god or goddess.
17
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The sun is 330,330 times larger than the earth!
190
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The Earth gets 100 tons heavier every day due to falling space dust.
673