LOS ANGELES - The red tide has returned, and you know what that means - bioluminescent waves are lighting up the Southern California coast a glowing blue for the second time in 2024. Known ...

Bioluminescence is a chemical reaction that takes place within some organisms, causing them to emit a light known as luminescence. It typically makes the water's surface appear to have a blue glow.

Look at this stunning electric blue bioluminescent plankton caught on camera off the Welsh coast. Filmed by Andrew Rees at Dunraven Bay, Vale of Glamorgan, bioluminescence is light emitted by ...