The Day the Earth Smiled is a special day that happened on July 19, 2013, when people around the world took pictures of the Earth at the same exact time. Scientists and photographers in over 45 countries worked together to capture our beautiful planet on that day. People could upload and share their photos on social media to show how much they care and love our shared home - Earth. It was a special way to show the world that we care and that we are all one global family who can work together to make the world a better place.