Astronauts cannot burp in space.
232
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
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Lightning strikes about 6,000 times per minute on this planet!
158
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
More than 20 million meteoroids enter Earth's atmosphere every day.
139