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
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
The sun is 330,330 times larger than the earth!
190
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The Earth gets 100 tons heavier every day due to falling space dust.
673
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175