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
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
A comet's tail always points away from the sun.
2
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The earth is .02 degrees hotter during a full moon.
157
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147