Summer on Uranus lasts for 21 years.
358
It would take more than 150 years to drive a car to the sun.
569
Astronauts get taller when they are in space.
224
Astronauts cannot burp in space.
232
Sound doesn't travel in space.
255
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
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Lightning strikes about 6,000 times per minute on this planet!
158