The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
More than 20 million meteoroids enter Earth's atmosphere every day.
139
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 heart of an astronaut actually gets smaller when in outer space.
216
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15