The Earth gets 100 tons heavier every day due to falling space dust.
673
The population of the Earth has more than doubled since 1950.
151
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
Summer on Uranus lasts for 21 years.
358
The earth rotates more slowly on its axis in March than in September.
145
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15