Fogbows are rainbows’ cousins – made by much the same process – but with the small water droplets inside a fog instead of larger raindrops. Look for fogbows in a thin fog when the sun is bright. You might see one when the sun breaks through a fog.
![White arch against a dark blue sky.](https://en.es-static.us/upl/2019/09/fogbow-white-dome-geyse-sept2019-e1568909657595.jpg)
Allen Carr captured this fogbow over Yellowstone Park’s White Dome Geyser on September 12, 2019..
![White arch against blue background.](https://en.es-static.us/upl/2019/09/fogbow-sept2019-e1568909597398.jpg)
Fogbow and Orion, early on the morning of September 13, 2019, by Photography of the Eternal Nomad.
Source:
https://earthsky.org/todays-image/fogbows-sept2019-photos