A comet's tail always points away from the sun.
2
The earth travels through space at 660,000 miles per hour.
189
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
Some asteroids have other asteroids orbiting them.
131
The earth rotates more slowly on its axis in March than in September.
145
The sun is 330,330 times larger than the earth!
190
