2019 December 15 - Mammatus Clouds Over Nebraska
Channel: APOD Podcast
Date: 15/12/2019

In today's image, we see type of cloud known as a Mammatus cloud. These are believer to form, often around the turbulent air of thunderstorms. They occur when there are larger water droplets that take more energy to evaporate and dissipate than smaller droplets would. They give very nice views, especially when illuminated by sunlight from a side angle.