The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Today's top fuel dragsters take off with more force than the space shuttle.
120
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Jupiter is bigger than all the other planets combined.
254
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
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
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194