This dramatic sunrise is looking east from Cedar Falls, Iowa. Bright yellow light from the setting Sun is illuminating a large field of mammatus clouds. Mammatus form under the anvil of a thunderstorms as air flowing out of the top of the storm is directed downward forming "pockets." Photo taken by Craig Johnson looking east from Cedar Falls, Iowa.
I’d rather have questions that cannot be answered than answers that cannot be questioned.
— Richard Feynman, PhD
Learn more about this remarkable scientist here: