Summer on Uranus lasts for 21 years.
358
The heart of an astronaut actually gets smaller when in outer space.
216
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The earth rotates more slowly on its axis in March than in September.
145
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Sound doesn't travel in space.
255