Researchers show how railroad worms produce red light

A research group comprising Brazilian and Japanese scientists has discovered how luciferase produced by the railroad worm Phrixothrix hirtus emits red light. Luciferase is an enzyme that catalyzes the oxidation of luciferin ...

Measuring stellar oscillations with Kepler

The Kepler satellite is famous for its discovery of thousands of exoplanets by continuously and meticulously measuring the brightnesses of over half-a-million stars for the signatures of transiting exoplanets. Less well known ...

Pavlov's classical conditioning inspires materials scientists

Researchers have successfully trained a material to respond to an originally neutral stimulus, a gel that can be taught to melt without needing heating. Their work, recently published in Nature Communications, was inspired ...

Image: Hubble's portrait of star's gaseous glow

Although it looks more like an entity seen through a microscope than a telescope, this rounded object, named NGC 2022, is certainly not algae or tiny, blobby jellyfish. Instead, it is a vast orb of gas in space, cast off ...

Black moon event bridges fiction, mythology and science

For those looking up at the sky tonight in North America, you may notice something missing—the moon! That's because July 31 marks a lunar event called the "black moon" which is the second new moon that happens in one calendar ...

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 ...

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