Aquarius, a constellation and the 11th sign of the zodiac. The name means "water bearer." Aquarius contains no particularly bright or noteworthy stars. The constellation is clearly visible during the early evening in autumn.
Precipitation does fall from the clouds of other planets, but it's a little more exotic than the good, old-fashioned rainwater we get here on Earth. Imagine sheets of methane, sulfuric acid and, yes, even diamonds falling from the sky.
It's tough to wrap your mind around a time when the Earth wasn't here. So how do Earth and the rest of the planets out there get their start in the universe?