Icon 047. Ringed Planet
I know what you're thinking. It's an icon of Saturn. Nope. It could be ANY ringed planet. It could even be EARTH. Here's what Earth would look like with saturns rings.
Background image credit: NASA, ESA and Jesús Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain). Acknowledgement: Davide De Martin (ESA/Hubble).