Muscle-like material expands and contracts in response to light

Just as controlled-release medications slowly dole out their cargo after they experience a pH change in the body, implanted "artificial muscles" could someday flex and relax in response to light illuminating the skin. In ...

Hands spread flame retardants, plasticizers throughout homes

Hundreds of everyday items, from furniture to cell phones to floor wax, contain organophosphate ester (OPE) flame retardants and plasticizers. Some of these semi-volatile compounds make their way into the air, onto surfaces ...

Uncovering the secrets of ancient rock art using 'X-ray vision'

Prehistoric rock paintings are a source of fascination across the world. Aside from their beauty, there's deep meaning in these strokes, which depict ancient rituals and important symbols. To learn more about these murals, ...

Alien earths could form earlier than expected

(Phys.org) -- Building a terrestrial planet requires raw materials that weren't available in the early history of the universe. The Big Bang filled space with hydrogen and helium. Chemical elements like silicon and oxygen ...

New instrument peers through the heart of the Milky Way

(PhysOrg.com) -- Astronomy has a powerful new tool to probe the structure of our galaxy. The Apache Point Observatory Galactic Evolution Experiment (APOGEE) spectrograph is the newest instrument deployed by the Sloan Digital ...

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