Some asteroids have other asteroids orbiting them.
131
Pluto is smaller than Russia.
9
Astronauts cannot burp in space.
232
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Sound doesn't travel in space.
255
Venus is the only planet that rotates clockwise.
310
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
Mars had an oxygen-rich atmosphere around 4 billion years ago
13