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NASA Using Selfies to Create Mosiac Earth Image
By Joe Gullo
Get your cell phones out, NASA is kicking off a global selfie event for Earth Day.
Here's how it works: You snap a photo of yourself then post it on one of five social media websites, including Twitter, using the hashtag "globalselfie." NASA will then use those photos to create a mosaic image of earth.
You can also post your photos on Instagram, Facebook, Google+ and Flickr.