The heart of an astronaut actually gets smaller when in outer space.
216
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
The Earth gets 100 tons heavier every day due to falling space dust.
673
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
Astronauts cannot burp in space.
232
Pluto is smaller than Russia.
9
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118