As part of it's Earth Right Now campaign, NASA is asking fans around the world today to participate in a special Earth Day (that's today!) photo project. Fans are to take a "selfie" photo that shares where on Earth they are.
For Earth Day we are trying to create an image of Earth from the ground up while also fostering a collection of portraits of the people of Earth. Once those pictures stream around the world on Earth Day, the individual pictures tagged #GlobalSelfie will be used to create a mosaic image of Earth — a new "Blue Marble" built bit by bit with your photos.
"Blue Marble" photo of the Americas, taken this morning, Earth Day 2014 [NASA]
How do you participate? NASA suggests "Get outside and show us mountains, parks, the sky, rivers, lakes — wherever you are, there's your picture. Tell us where you are in a sign, words written in the sand, spelled out with rocks — or by using the printable signs we've created."
NASA will be monitoring photos tagged to their accounts from five social media sites: Twitter, Instagram, Facebook, Google+ and Flickr.
Top Image: Printable #GlobalSelfie sign [NASA]