The Boomerang nebula, called the "coldest place in the universe," reveals its true shape to the Atacama Large Millimeter/submillimeter Array (ALMA) telescope. The background blue structure, as seen in visible light by NASA's Hubble Space Telescope, shows a classic double-lobe shape with a very narrow central region. ALMA's resolution and ability to see the cold gas molecules reveals the nebula's more elongated shape, as seen in red.
Image credit: NRAO/AUI/NSF/NASA/STScI/JPL-Caltech
Note: For more information, see Ghostly Specter Haunts the 'Coldest Place in the Universe'.
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