Cygnus, a constellation that lies in the Milky Way between Lyra and Pegasus. It contains the first-magnitude star Deneb. Deneb and four other stars within the constellation form the Northern Cross. Cygnus is named for a character in Greek mythology who was turned into a swan and placed in the heavens by the god Apollo.
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?