DescriptionPotw1444a.jpg English: The smokey black silhouette in this new image is part of a large, sparse cloud of partially ionised hydrogen — an HII...
on Flickr Date 3 November 2014, 10:00:00 Source http://www.spacetelescope.org/images/potw1444a/ Author ESA/Hubble & NASA Acknowledgement: Marc Canale...