It's okay to have a little cry. Meet Sadness from Disney Pixar's Inside Out, voiced by Phyllis Smith. | Disney

The Discovery Of Pluto. | Cosmoknowledge

Discovered 40 years ago today, Charon, the largest of Pluto's five moons, fueled the dwarf planet’s evolution from a telescopic dot into an actual planetary system – and a source of many discoveries yet to come: https://go.nasa.gov/2K0qb9D | NASA - National Aeronautics and Space Administration