Tranquil The surface area of Saturn's moon Mimas is composed of water ice with only a small amount of rock. Yet Saturn's resonances with Mimas, and Mimas' resonances with other orbiting satellites are instrumental in the formation of Saturn's rings.
Tulip Nebula - I'm pinning this for the picture. The article says we are made of star stuff. That sounds nice and poetic, but it doesn't give you any meaning, unfortunately. Star stuff doesn't care about you.