Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Some asteroids have other asteroids orbiting them.
131
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
Pluto is smaller than Russia.
9
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
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
More than 20 million meteoroids enter Earth's atmosphere every day.
139