A stunning natural phenomenon called "blue tears" recently illuminated the sea off Pingtan Island in east China's Fujian Province. The natural phenomenon is actually caused by bioluminescence that glows when disturbed.
Looking like a mini-Milky Way, the "blue tears" spectacle draws many onlookers, especially from April to June every year.
(Reported by Wu Shengwei; Edited by Qi Yiling)
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