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.
13
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
There are two golf balls sitting on the moon.
721
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Lightning strikes about 6,000 times per minute on this planet!
158