An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Lightning strikes about 6,000 times per minute on this planet!
158
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
More than 20 million meteoroids enter Earth's atmosphere every day.
139
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
A 100-pound person on Earth would weigh 38 pounds on Mars.
102