Neowise

The Neowise Comet streaks across the northwestern skies over the Walla Walla, Wash., Friday night, July 17, 2020. According to NASA comets are cosmic snowballs of frozen gases, rock and dust. When a comet's orbit brings it close to the sun, it heats up and spews dust and gases into a giant glowing head larger than most planets. (Greg Lehman/Walla Walla Union-Bulletin via AP)