Check out these mammatus clouds

Mammatus clouds can appear ominous. But, in a way that’s so common in nature, their dangerous aspect goes hand in hand with a magnificent beauty. Source: https://earthsky.org/earth/amazing-photos-of-mammatus-clouds…

This date in science: Clyde Tombaugh discovers Pluto

Ninety years ago on this date, Clyde Tombaugh discovered Pluto. It was, until 2006, regarded as the ninth planet in our solar system. Source: https://earthsky.org/space/this-date-in-science-clyde-tombaugh-discoverer-of-pluto…