On my way home from work today, I spotted this partial rainbow, looking bright against the dark clouds.
It was a rather drizzly/sprinkly day today with gaps in the clouds that left room for the sun to shine through.
A few facts about rainbows:
We only see them near sunrise or sunset.
They are not really a "bow" but rather a full, circular halo created by light refracting through falling raindrops.
The circle is visible from an airplane if you were to fly past while a rainbow was present.
The light is refracted into 5 primary colors: red, yellow, green, blue and violet.
Red is always at the top, violet is always at the bottom.
The light is refracted into these colors because a falling raindrop is perfectly round and acts as a prism.
Legend has it that a rainbow always ends in a pot of gold.
Legend also says: "You'll never grow old, and you'll never grow poor, if you look to the rainbow, beyond the next moor." ;)