Natural rainbow colorants microbially produced

A research group at KAIST has engineered bacterial strains capable of producing three carotenoids and four violacein derivatives, completing the seven colors in the rainbow spectrum. The research team integrated systems metabolic ...

The secrets of the best rainbows on Earth

Rainbows are some of the most spectacular optical phenomena in the natural world and Hawai'i has an amazing abundance of them. In a new publication, an atmospheric scientist at the University of Hawai'i at Mānoa makes an ...

Using better colours in science

Colors are often essential to convey scientific data, from weather maps to the surface of Mars. But did you ever consider that a combination of colors could be "unscientific?" Well, that's the case with color scales that ...

Tryptophan supports intestinal tracts of stressed trouts

A biologist from RUDN University has found the most beneficial concentration of tryptophan for rainbow trout. When added to the diet of the fish, this amino acid supports the immune system and reduces oxidative stress in ...

Utah's arches continue to whisper their secrets

Two new studies from University of Utah researchers show what can be learned from a short seismic checkup of natural rock arches and how erosion sculpts some arches—like the iconic Delicate Arch—into shapes that lend ...

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