Glow-in-the-dark trees could someday replace city street lights

Sounds magical, but is it too good to be true?

Glow in the dark trees light up blue
(Image credit: Illustrated)

Researchers in Denmark have a whimsical idea for lighting city streets and sidewalks: glow-in-the-dark trees.

Imagine: No more street lamps with broken bulbs or dimly-lit alleys. Instead, your evening stroll is illuminated by luminous trees giving off a calming blue hue. A Danish startup called Allumen wants to make this sci-fi fantasy a reality. The goal is to isolate the genes that cause some creatures to glow, and use those genes to genetically engineer trees to do the same thing.

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