More than 20 million meteoroids enter Earth's atmosphere every day.
139
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
Buzz Aldrin’s mother’s maiden name was Moon.
9
Astronauts get taller when they are in space.
224
The population of the Earth has more than doubled since 1950.
151
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