the light-emitting enzyme responsible for the bioluminescence of fireflies and click beetles.

Bioluminescent compound in fireflies, substrate.

The firefly squid (Watasenia scintillans), also commonly known as the sparkling enope squid or hotaru-ika in Japan, is a species of squid in the family Enoploteuthidae.

an American drama television series created by Maggie Friedman for Netflix.

a medium tank used by the United Kingdom and some armoured formations of other Allies in the Second World War.

an American private aerospace firm based in Cedar Park, Texas, that develops small and medium launch vehicles for commercial launches to orbit.

a Second World War-era carrier-borne fighter aircraft and anti-submarine aircraft that was principally operated by the Fleet Air Arm.

(Firefly α) a two-stage orbital expendable small lift launch vehicle developed by the American company Firefly Aerospace to compete in the commercial small satellite launch market.