Installation view of (in center of frame) 84 Bottoms Up, 2013 and (in background) Curtains Laced with Diamonds Dear for You, 2014 by Joel Otterson. (artbooks.yupnet.org)
The one appearing in the center of the frame is an internal lens reflection of the intense left wing strobe flash. (newscientist.com)
The manganese atom (in purple) is at the center of the frame — the ligand — which facilitates the hydrogenation of carbon dioxide. (sciencedaily.com)