当暴露于波长约400纳米的光中，普通绿色叶绿素将发出红光。
When exposed to light with a wavelengths of about 400 nanometers the normally green colored chlorophyll glows red.
玫瑰星云（Rosette nebula）位于麒麟座（constellation Monoceros）之中，这张散发着粉红光芒的星云照片发布于8月25日。
The Rosette nebula, located within the constellation Monoceros (the Unicorn), glows appropriately pink in this image released August 25.
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