ORLANDO, Fla. -

NASA plans to mark Earth Day by creating a unique view of the planet -- through selfies.

The agency is asking the public to join its "#GlobalSelfie" project by taking selfies to add to a collection that will ultimately be used for a mosaic.

NASA says the selfies will help them capture a new image of Earth that can't be seen using its satellites.

In order to participate, people can download, print and fill out a #GlobalSelfie sign. People are asked to hold up the sign while taking the selfie to indicate the location of the photo.

[RELATED:Download #GlobalSelfie sign]

NASA encourages the public to take the selfie in an area that highlights Earth's beauty, such as its mountains, parks, rivers and lakes.

After taking the photo, people can share their selfies with NASA by posting the photos to social media web sites using the hashtag #GlobalSelfie. NASA will use the selfie collection to create its mosaic.

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NASA invites public to join 'Global Selfie'