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
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 Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Only 55% of Americans know that the sun is a star.
986
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
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
The Earth gets 100 tons heavier every day due to falling space dust.
673