1. (n.) The son or husband of Gaia (Earth), and father of Chronos (Time) and the Titans.

2. (n.) One of the primary planets. It is about 1,800,000,000 miles from the sun, about 36,000 miles in diameter, and its period of revolution round the sun is nearly 84 of our years.

Earth Jupiter Mars Mercury Neptune Pluto Saturn Uranus Venus asteroids aurora particles blackout cosmic particles cosmic ray bombardment inferior planet intergalactic matter major planet meteor dust impacts meteors minor planet planet planetoid radiation secondary planet solar system space bullets superior planet terrestrial planet the bends wanderer weightlessness