I will close out Earth Day with a final picture of the Earth as viewed through Saturn’s rings.  This image was taken by NASA on April 12, 2017; more information can be found at Yahoo Finance here.  Everything that happened around the world today, including all the Marches for Science and all of your own activities, occurred on the little tiny speck that is visible between Saturn’s rings in the middle of the picture.  Puts things in perspective, doesn’t it?

Earth and the moon as seen through the rings of Saturn on April 12, 2017.NASA/JPL-Caltech/Space Science Institute