Photo provided by Australian National University (ANU) shows a blue Morpho butterfly on a solar cell at ANU in Canberra, Australia, May 16, 2017. Butterfly wings could be used to inspire new technology in solar cells, said ANU researchers, adding that "filtering" light could be a major feature of future solar projects. (Xinhua/ANU)
Weekly choices of Xinhua photos (May 15 - May 21)
Source: Xinhua| 2017-05-21 15:41:04|Editor: MJ
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