Search results for black arsenic

Plants & Animals Feb 1, 2017

First functional fish head joint discovered in deep-sea dragonfishes in museum collections

Scientists with the Smithsonian's National Museum of Natural History and the French Muséum national d'Histoire naturelle are the first to describe and illustrate an evolutionary novelty among fishes—a unique, flexible ...

Ecology Nov 30, 2016

Rare ferrets settling in, making babies at new Colorado home

Dozens of slinky, ferocious and rare ferrets are settling in and making babies at their new home in Colorado, one year after they were released at a wildlife refuge outside Denver.

Environment Oct 12, 2016

Research points to racial disparities in lead poisoning risk, and a model for action

In 2014, lead began leaching into the water system in Flint, Mich., a majority African-American city where more than 40 percent of residents live below the poverty line. In August, severe ground contamination forced more ...

Ecology Aug 17, 2016

Pesticide-resistant whitefly could 'devastate' many US crops

A tiny, invasive whitefly that is resistant to pesticides and carries crop-devastating viruses has been found outdoors in the United States for the first time, raising concerns among fruit and vegetable growers.

Analytical Chemistry Aug 4, 2016

Science unmasks the woman Degas painted over

Researchers used super-X-ray vision to peer beneath the surface of a portrait by impressionist Edgar Degas and gaze upon the model whose likeness he painted over nearly 140 years ago, they reported Thursday.

Ecology Jul 26, 2016

Black-footed ferrets return to where they held out in wild

A nocturnal species of weasel with a robber-mask-like marking across its eyes has returned to the remote ranchlands of western Wyoming where the critter almost went extinct more than 30 years ago.

General Physics Jul 20, 2016

Researchers develop a 'physical cryptography' for secure and accurate accounting of the world's nuclear arsenals

Verifiably reducing the number of nuclear weapons in the world will require more than international diplomacy; a scientific breakthrough is needed. To date, all nuclear arms control treaties have been limited in a peculiar ...

Materials Science Feb 26, 2016

How metal clusters grow

First the nucleus, then the shell: Researchers from Marburg and Karlsruhe have studied stepwise formation of metal clusters, smallest fractions of metals in molecular form. The shell gradually forms around the inner atom ...

Astronomy Jan 21, 2016

Predicting planets: The highs and lows

In the mid-19th century, astronomers hypothesised an extra planet in our solar system, orbiting between the Sun and Mercury.

Other Nov 19, 2015

Chemical contaminants in foods—health risks and public perception

Important changes are underway in the food industry, as food production becomes an increasingly global process. This transition is creating challenges for food manufacturers, regulators, and consumers as well. Challenges ...

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