A comet's tail always points away from the sun.
2
It 'snows' metal on Venus.
13
Sound doesn't travel in space.
255
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
The earth rotates more slowly on its axis in March than in September.
145
It would take more than 150 years to drive a car to the sun.
569
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Mars had an oxygen-rich atmosphere around 4 billion years ago
13