The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The earth rotates more slowly on its axis in March than in September.
145
There are two golf balls sitting on the moon.
721
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Sound doesn't travel in space.
255
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
A 100-pound person on Earth would weigh 38 pounds on Mars.
102