Wish I could be there after such a rain!!

It rains diamonds on Saturn and Jupiter.

Diamond "hailstones" form on Saturn and Jupiter when "lightning storms turn methane into soot (carbon) which as it falls hardens into chunks of graphite and then diamond," according to the BBC. The largest diamonds are purportedly about one centimeter in diameter. In one interesting theory laid out in a book called Alien Seas, robotic "mining ships" could be sent to these planets to retrieve the diamonds and bring them back to earth.