In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The earth rotates more slowly on its axis in March than in September.
145
The earth travels through space at 660,000 miles per hour.
189
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
Sound doesn't travel in space.
255