Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The Earth gets 100 tons heavier every day due to falling space dust.
673
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
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
The earth rotates more slowly on its axis in March than in September.
145
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
