There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
Some asteroids have other asteroids orbiting them.
131
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
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
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The heart of an astronaut actually gets smaller when in outer space.
216
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121