Metabolically engineered bacterium produces lutein

Lutein is classified as a xanthophyll chemical that is abundant in egg yolk, fruits, and vegetables. It protects the eye from oxidative damage from radiation and reduces the risk of eye diseases including macular degeneration ...

Study finds nickelate superconductors are intrinsically magnetic

Electrons find each other repulsive. Nothing personal—it's just that their negative charges repel each other. So getting them to pair up and travel together, like they do in superconducting materials, requires a little ...

Woodland plant's 'fishing rod' reels in its primary pollinator

The distinctive-looking plant Arisaema urashima is a common sight in woodlands in Japan. It has a large spathe (sheath enclosing its flowers) from which hangs a long-thread like appendix (that can reach over 50cm in length) ...

A four-stroke engine for atoms

If you switch a bit in the memory of a computer and then switch it back again, you have restored the original state. There are only two states that can be called "0 and 1."

Exploring how animals navigate

The Arctic Tern migrates an extraordinarily long way—from pole to pole. And while this bird is unique in the distance it traverses, its excellent sense of direction is shared by many other animals that use a variety of ...

Hubble delves into cosmic treasure trove

This image from the NASA/ESA Hubble Space Telescope captures the sparkling globular cluster NGC 6569 in the constellation Sagittarius. Hubble explored the heart of this cluster with both its Wide Field Camera 3 and Advanced ...

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