One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
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
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
Only 55% of Americans know that the sun is a star.
986
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
A 100-pound person on Earth would weigh 38 pounds on Mars.
102