How Did NASA Make A Global Selfie?

NASA's ‘global selfie’ is a 3.2-billion-pixel portrait

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Head Image
© 2017 NASA

NASA's foray into social media has turned out well. The picture (above), NASA’s “Global Selfie” Earth mosaic, is a 3.2-billion-pixel portrait which comprises of more than 36,000 individual photographs,

On Earth Day this year, Tuesday April 22nd, NASA invited people from all around the world to go outside to take a "selfie" and post it on social media. More than 50,000 participants tagged their selfies #GlobalSelfie and shared them on Twitter, Instagram, Facebook, Google+ and Flickr.

"to encourage environmental awareness and recognize the agency's ongoing work to protect our home planet."

The aim of he project, according to NASA was "to encourage environmental awareness and recognize the agency's ongoing work to protect our home planet."

The results were phenomenal, with selfies posted by people on every continent and 113 countries and regions, from Antarctica to Yemen, Greenland to Guatemala, and Pakistan to Peru, according to NASA.

It took the project team several weeks to collate and assemble the global mosaic. The resulting image is a 3.2-gigapixel image that users can zoom in, scan and explore to look at individual photos. 

"With the Global Selfie, NASA used crowd-sourced digital imagery to illustrate a different aspect of Earth than has been measured from satellites for decades: a mosaic of faces from around the globe," said Peg Luce, deputy director of the Earth Science Division in the Science Mission Directorate at NASA Headquarters, Washington. "We were overwhelmed to see people participate from so many countries. We're very grateful that people took the time to celebrate our home planet together, and we look forward to everyone doing their part to be good stewards of our precious Earth.”

For more related images and videos on the Global Selfie mosaic click here.