Meteorite strikes made life on Earth possible

Meteorites from the far reaches of the solar system delivered large amounts of water, carbon and volatile substances to the Earth. Only then could the Earth host life. Dr. María Isabel Varas-Reus, Dr. Stephan König, Aierken ...

Selenium deficiency promoted by climate change

Selenium is an essential micronutrient obtained from dietary sources such as cereals. The selenium content of foodstuffs largely depends on concentrations in the soil: previous studies have shown that low selenium concentrations ...

Team optimizes formula for cadmium-tellurium solar cells

Solar cells based on cadmium and tellurium could move closer to theoretical levels of efficiency because of some sleuthing by researchers at the Department of Energy's Oak Ridge National Laboratory.

Selenium suppresses staph on implant material

Selenium is an inexpensive element that naturally belongs in the body. It is also known to combat bacteria. Still, it had not been tried as an antibiotic coating on a medical device material. In a new study, Brown University ...

Selenium impacts honey bee behavior and survival

(Phys.org) -- Entomologists at the University of California, Riverside have a “proof of concept” that selenium, a nonmetal chemical element, can disrupt the foraging behavior and survival of honey bees.

Selenium makes more efficient solar cells

Call it the anti-sunscreen. That's more or less the description of what many solar energy researchers would like to find -- light-catching substances that could be added to photovoltaic materials in order to convert more ...

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