News tagged with ultraviolet radiation

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Hot cores in dark clouds

(PhysOrg.com) -- The earliest stages in the life of a star are among the most mysterious. This is primarily because stars form inside dark clouds of material that block optical light, and because they form ...

Dec 06, 2011 4 / 5 (2) 1 | with audio podcast

Making stars in early galaxies

(Phys.org)—Ten billion years ago or so, at least according to the current picture, the youthful universe began to produce an abundance of new stars. The very first ones appeared in the young cosmos after ...

Dec 10, 2012 5 / 5 (1) 0

Calculate your nitrogen footprint

Carbon footprints are a familiar way to assess how green your lifestyle is, but now you can also measure your nitrogen footprint using a new tool, the N-Calculator.

May 15, 2013 5 / 5 (1) 0

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