Assertion: horsehead nebula | /r/HasProperty | lower left panel
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Source sentences:
text: The far-infrared image of the cloud (upper panel) is based on data from ESA's Herschel Space Observatory; the visible-wavelength image showing a portion of the cloud (lower right panel) was taken with ground-based telescopes as part of the Digitised Sky Survey; the detail showing the the Horsehead Nebula (lower left panel) was taken at near-infrared wavelengths using the NASA/ESA Hubble Space Telescope.