Sound doesn't travel in space.
255
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The population of the Earth has more than doubled since 1950.
151
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
Summer on Uranus lasts for 21 years.
358
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Jupiter's moon Ganymede, is larger than the planet Mercury!
149