'Nesting doll' minerals offer clues to Earth's mantle dynamics

Recovered minerals that originated in the deep mantle can give scientists a rare glimpse into the dynamic processes occurring deep inside of the Earth and into the history of the planet's mantle layer. A team led by Yingwei ...

Iron-reducing bacteria could detoxify chromium

Hexavalent chromium is a major environmental contaminant at several Department of Energy (DOE) sites as well as other sites around the world. Iron-reducing bacteria can convert the oxidized form of iron in clay minerals, ...

Hospital scanner could curb nuclear waste threat

Medical equipment used for diagnosis of patients with heart disease and cancer could be a key weapon in stopping nuclear waste seeping into the environment, according to new research.