The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
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
The heart of an astronaut actually gets smaller when in outer space.
216
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
It would take more than 150 years to drive a car to the sun.
569
The earth rotates more slowly on its axis in March than in September.
145
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Buzz Aldrin’s mother’s maiden name was Moon.
9