It took 36,422 individual photos from 113 countries around the world to create NASA's 2014 "global selfie"--an interactive, composite picture of our planet.
In observance of Earth Day in April, NASA posed the question, "Where are you on Earth right now?" and invited people to reply with a photo.
Thousands of people did, uploaded their pictures to Twitter, Instagram or Google+ using the hashtag #GlobalSelfie. or posting them on Facebook or the photo site Flickr.
The mosaic image can be explored interactively using Gigapan technology,that allows users to zoom in on any part of the globe.