See if you can find the 8 differences in each set of images.

The night sky

Scanning electron microscope image of tin droplets on a textured ZnO:Al substrate. This is used for growing silicon nanowires for photovoltaic applications.

Soumyadeep Misra, LPICM-CNRS, École Polytechnique, France

figure 1

June 2016 answer key

figure 2

Images on the top were submitted to the Materials Research Society “Science as Art” competition.

Images on the bottom were modified in Adobe Photoshop for this “Look Again” activity.

figure 3

NiSb2

NiSb2 obtained by solid-state synthesis and used as a negative electrode for Na-ion batteries.

Claire Villevieille, Paul Scherrer Institute, Switzerland

Answers will be published in the October 2016 issue.