More Than 100 Countries, Tens of Thousands of Photos: The Making of a Global Selfie

On Earth Day this year, NASA asked people all around the world a simple question – “Where are you on Earth Right Now?”
We asked people to answer the question on social media, with a selfie. The goal was to use each picture as a pixel in the creation of a “Global Selfie” – a mosaic image that would look like Earth appeared from space on Earth Day.