Dutch researchers raise energy yield of 'cheap' solar panels

Researchers from TU Delft in the Netherlands have shown how the energy yield of relatively cheap solar panels, made of amorphous silicon, can be considerably raised: from around 7 percent to 9 percent.

North America backs plan to cut greenhouse gases

(AP) -- Small island nations gained North America's powerful backing Tuesday for a plan to convert the U.N. ozone treaty into a tool for phasing out some of the globe's most powerful climate-warming gases.

Galactic X-ray emissions originate from stars

(PhysOrg.com) -- A 25-year old astronomical mystery has been solved: Most of the diffuse X-ray emissions in the Milky Way do not originate from one single source but from so-called white dwarfs and from stars with active ...

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