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
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
It would take more than 150 years to drive a car to the sun.
569
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Summer on Uranus lasts for 21 years.
358
The earth travels through space at 660,000 miles per hour.
189
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219