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
The earth rotates more slowly on its axis in March than in September.
145
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
It takes eight and a half minutes for light to get from the sun to earth.
159
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Summer on Uranus lasts for 21 years.
358