Bioluminescence saves a future astronaut.
In 1953 Jim Lovell is returning to the Navy carrier Shangri-La in an F2H-Banshee. His instruments fail. The sun has set and the moon will not rise for four hours. He radios and is in line with his carrier, and then the radio goes as well.
Too low and he will die against the stern of the ship. Too high and he will miss the landing hook. He can't see, and then he can. He can see the bioluminescent glow of the phytoplankton stirred up by the prop of the carrier. It is a faint glow that gets brighter as he gets closer. He lands successfully by the light of the ocean plankton.
Jim Lovell completes more than 100 successful carrier landings and goes on to Apollo-8 and was Commander for the Apollo-13 mission.
https://www.thevintagenews.com/2018/08/11/jim-lovell/
https://ocracokeobserver.com/2015/07/21/bioluminescence-nighttime-beach-beauty/
https://www.nasa.gov/wp-content/uploads/2016/01/lovell_james_0.pdf?emrc=99cdb4
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