The light hitting the earth right now is 30 thousand years old.
163
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
More than 20 million meteoroids enter Earth's atmosphere every day.
139
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
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221