In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
The earth rotates more slowly on its axis in March than in September.
145
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
It 'snows' metal on Venus.
13