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A towering mountain of cold hydrogen gas laced with dust is the site of new star formation in the Carina Nebula. The great gas pillar is being eroded by the ultraviolet radiation from the hottest newborn stars in the nebula. Carina is an emission nebula in the Milky Way and the area in this image is roughly 25 arcminutes (53 light-years) wide.
Credit:NASA/Hubble Heritage Archives.