DALLAS (CBSDFW.COM) — NASA is celebrating Earth Day on Tuesday by asking you — and everyone else on the planet — to take part in the agency’s ‘Global Selfie’ event.

To participate, people are encouraged to take ‘selfies’ outside — wherever that may be — and share them on social media using the hashtag #GlobalSelfie. Twitter, Instagram, Facebook, Google+ and Flickr can all be used.

NASA will then use the image to create a “mosaic image of Earth — a new ‘Blue Marble’ built bit by bit with your photos.” The mosaic and a video using the images will be released in May.

You can download a printable sign for the photo here, or indicate where you are creatively by spelling it out with rocks or in the sand.

The KRLD Newsroom poses for a #GlobalSelfie

The agency is calling 2014 a big year for NASA, as five missions designed to gather critical data about Earth are being launched to space this year.

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