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.
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A 100-pound person on Earth would weigh 38 pounds on Mars.
102
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
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Lightning strikes about 6,000 times per minute on this planet!
158
The light hitting the earth right now is 30 thousand years old.
163
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
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.
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