Aries, a constellation and the first sign of the zodiac. The name means "The Ram." Aries is a small constellation that contains no noteworthy stars. Although it can be seen in the evening during the autumn, it is not easily identifiable.
Although other planets have rings, none are as spectacular as Saturn's. What makes the planet's stratified rings, and how did they get there in the first place?
Doomsday theorists might expect 2012 to be a year of ray-gun-style solar flares, but their assumptions aren't at all backed up by science. What are solar flares, and what happens if they really do hit the Earth?