Some asteroids have other asteroids orbiting them.
131
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Astronauts cannot burp in space.
232
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
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 weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175