Summer on Uranus lasts for 21 years.
358
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The Earth gets 100 tons heavier every day due to falling space dust.
673
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
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 heart of an astronaut actually gets smaller when in outer space.
216
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