A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Sound doesn't travel in space.
255
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
If two pieces of metal touch in space, they become permanently stuck together.
808
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127