Carbon space nebula

Scanning electron microscope image of porous carbon spheres used as a platform for biofuel cell applications.

Nina Heidary, Institute of Chemistry, Technische Universität Berlin, Germany

figure 1

August 2016 answer key

figure 2

Nano-peony flower

Zinc-oxide nanoflower structure synthesized by pulsed laser deposition.

Shang-Hsuan Wu, Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan

figure 3