Satellite photos of Earth against the dark backdrop of space inspired the nickname "the blue marble," referring to the expanses of ocean that cover 71 percent of the planet's surface. In an image shared online today (Oct. 28) by NASA's Earth Observatory, the Arctic is front and center, showcasing the region of the planet covered by varying amounts of ice year-round. NASA scientists created the image to commemorate the first meeting of an international consortium of scientists planning global partnerships for Arctic research.
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