Ophiuchus, Major structures of the universe, galaxy clusters, interstellar gas and dust have delivered some of their secrets to the European Planck satellite.Launched in 2009 to map the cosmic microwave background, the Planck satellite has observed the entire celestial sphere in the wavelength millimeter and submillimeter. Meanwhile its high-precision map of “First Light of the Universe” in 2013, he revealed valuable information about the stars located in the foreground.
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