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Clumps of Cold Stuff Across the Sky:
This map illustrates the numerous star-forming clouds, called cold cores, that Planck observed throughout our Milky Way galaxy. Planck, a European Space Agency mission with significant NASA participation, detected around 10,000 of these cores, thousands of which had never been seen before. Cold cores are chilly chambers of gas and dust where stellar embryos are just beginning to take shape. Some of the cold cores found by Planck are the coldest ever observed, as cold as just seven degrees above absolute zero, or minus 447 degrees Fahrenheit.

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