The light hitting the earth right now is 30 thousand years old.
163
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
A comet's tail always points away from the sun.
2
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The sun is 330,330 times larger than the earth!
190