" "When I first saw a sea sapphire I thought I was hallucinating," says R.R. Helm over at Deep Sea news. Having spent the afternoon exposed to the muggy heat of Durban in South Africa, confined to a tiny dingy while pulling in hauls of plankton, Helm noticed a quick blue flash in one of his collection jars. It was there for an instant, and then disappeared just as quickly, only to appear and disappear again in another place. What was creating these radiant blue flashes?"




http://sciencealert.com.au/features/20140610-26288.html