An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The earth rotates more slowly on its axis in March than in September.
145
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Buzz Aldrin’s mother’s maiden name was Moon.
9
The sun is 330,330 times larger than the earth!
190
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178