Want a say in the news? Email Claudia at todayinpa@pennlive.com to have your thoughts on the stories covered here or on PennLive heard. York County might have suffered a data breach. This stream’s ...

Rivers and coastal lagoons worldwide emit an electric blue glow after sunset, a phenomenon caused by bioluminescent dinoflagellates. These microscopic plankton produce light through chemical reactions ...

Imagine yourself swimming in the warm water off the coast of a lovely sandy beach. Suddenly, you are swimming through a beautiful, soft blue glow that seems to come from the water all around you.

Beachgoers caught a glimpse of bioluminescence in Southern California waters this month. The blue glow comes from bioluminescent phytoplankton that are agitated in the water by waves. Screengrab from ...

Mumbai’s iconic Juhu Beach has recently turned into a visual spectacle, with several viral videos flooding social media showing the sea glowing in bright neon blue after dark. The rare and mesmerising ...

With each wave that crashes, a pulse of bright blue neon electrifies the dark waters, lighting up the whitewash as it crumbles toward shore. The bioluminescence that creates the glowing waves has made ...

It may look like "something from the X-Files", but Network Rail has offered a rational explanation.