A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
Lightning strikes about 6,000 times per minute on this planet!
158
It would take more than 150 years to drive a car to the sun.
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