The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Today's top fuel dragsters take off with more force than the space shuttle.
120
The Earth gets 100 tons heavier every day due to falling space dust.
673
Astronauts get taller when they are in space.
224
The heart of an astronaut actually gets smaller when in outer space.
216
A comet's tail always points away from the sun.
2
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
The population of the Earth has more than doubled since 1950.
151