A new energy-saving LED phosphor

The human eye is particularly sensitive to green, but less sensitive to blue and red. Chemists led by Hubert Huppertz at the University of Innsbruck have now developed a new red phosphor whose light is well perceived by the ...

'Astrocomb' opens new horizons for planet-hunting telescope

The hunt for Earth-like planets, and perhaps extraterrestrial life, just got more precise, thanks to record-setting starlight measurements made possible by a National Institute of Standards and Technology (NIST) "astrocomb."

Holographic color printing for optical security

Researchers from the Singapore University of Technology and Design (SUTD) have invented a new type of anti-counterfeiting technology called holographic colour prints for securing important documents such as identity cards, ...

Hubble views a colorful demise of a sun-like star

This image, taken by the NASA/ESA Hubble Space Telescope, shows the colorful "last hurrah" of a star like our sun. The star is ending its life by casting off its outer layers of gas, which formed a cocoon around the star's ...

Color vision helps birds find good food and the right partner

The researchers have established that chickens - just like people - have colour constancy. For birds, this means that they, in different environments and under different lighting conditions, recognise the colour of, for instance, ...

First discovery of a binary companion for a Type Ia supernovae

A team of astronomers including Harvard's Robert Kirshner and Peter Challis has detected a flash of light from the companion to an exploding star. This is the first time astronomers have witnessed the impact of an exploding ...

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