“Red Tide”: The Natural Luminescence Phenomenon

1
Glow-in-the-dark blue waves caused by the phenomenon known as harmful algal bloom or “red tide”, are seen at night near Sam Mun Tsai beach in Hong Kong January 22, 2015. Algal blooms occur when there is a sharp growth in algae population in a water system, and are considered harmful when resulting in negative impacts on other organisms. Picture taken using long exposure. (Photo by Tyrone Siu/Reuters)
Continue reading »