02/03/2011

US Discovery astronauts step out on last spacewalk

Two US astronauts on Wednesday stepped out on the second and final spacewalk of the Discovery shuttle mission at the International Space Station to work on repairs at the orbiting lab.

CO2 exacerbates oxygen toxicity

French research team at the Laboratoire de Chimie Bacterienne has demonstrated that carbon dioxide (CO2) plays a role in the formation of oxidative damage in vivo. Under conditions of oxidative stress, certain types of damage ...

Wintertime air chemistry to be studied

NOAA scientists and their colleagues from Boulder, Colo., and across the country have gathered in Erie, Colo., for a month-long study of the chemistry of the wintertime atmosphere, which they hope will shed light on some ...

Sugarcane bioethanol: Environmental implications

An article in the current issue of Global Change Biology Bioenergy assessed the net greenhouse gas savings of bioethanol from sugarcane as compared to the use of fossil fuels.

Map sheds light on English Civil War

A geographical map depicting landowners’ loyalties to the restored King Charles II after the English Civil War has shown that contrary to popular opinion, peace was not assured in the 1660s, long after the war had ended ...

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