Earth Day gives us a chance to reflect on the amazing planet we live on and how we can work together to preserve it. And there's no better way to see just how lucky we are than by getting a glimpse of Earth from space.
That's why NASA has compiled some of its favorite photos of the Blue Planet. The images, taken by astronauts and various spacecrafts, capture beautiful views of the world that few people can experience in person. They range from astronauts' social media posts to older images taken during earlier space missions.
See a selection of the photos from NASA below, and head to the NASA site to see more.