Spectral Visions | Space Wallpaper
Boomerang Nebula
About this Image
The ghostly Boomerang Nebula, called the 'coldest place in the universe,' reveals its true shape in this amazing space wallpaper from the giant ALMA radio telescope. The background blue structure, as seen in visible light with the Hubble Space Telescope, shows a classic double-lobe shape with a very narrow central region. Image released Oct. 24, 2013.

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