Screen Glow and Blue-Light Glasses. A National Sleep Foundation study showed that the glow from electronic devices suppresses melatonin and interferes with falling and staying asleep.

Predators that tread on a colony of parchment tube worms may find themselves slimed. When threatened, these ocean creatures exude a sticky mucus that can glow blue for days (SN: 7/28/14). Making ...

The red tide is due to bioluminescent dinoflagellates that, when moved by water or waves, “glow neon blue at night,” according to the announcement.