News tagged with ultraviolet radiation

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Listening to ancient colors

A team of McGill chemists have discovered that a technique known as photoacoustic infrared spectroscopy could be used to identify the composition of pigments used in art work that is decades or even centuries old. Pigments ...

Sep 02, 2010 4 / 5 (1) 0

Arctic on the verge of record ozone loss

Unusually low temperatures in the Arctic ozone layer have recently initiated massive ozone depletion. The Arctic appears to be heading for a record loss of this trace gas that protects the Earth's surface against ultraviolet ...

Mar 14, 2011 1 / 5 (1) 2

Star birth in Cepheus

(Phys.org) —Watching starbirth isn't easy: tens of millions of years are needed to form a star like our Sun. Much like archeologists who reconstruct ancient cities from shards of debris strewn over time, ...

Apr 01, 2013 1 / 5 (1) 2 | with audio podcast