News tagged with ultraviolet radiation

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Critical protein helps mend damaged DNA

In order to preserve our DNA, cells have developed an intricate system for monitoring and repairing DNA damage. Yet precisely how the initial damage signal is converted into a repair response remains unclear. Researchers ...

dateDec 24, 2009 in Cancer
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A surprisingly bright superbubble

(—This composite image shows a superbubble in the Large Magellanic Cloud (LMC), a small satellite galaxy of the Milky Way located about 160,000 light years from Earth.

dateAug 30, 2012 in Astronomy
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A pocket of star formation

( -- This new view shows a stellar nursery called NGC 3324. It was taken using the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile. The intense ultraviolet radiation from ...

dateFeb 01, 2012 in Astronomy
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Hot cores in dark clouds

( -- 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 relatively quickly, ...

dateDec 06, 2011 in Astronomy
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EVE: Measuring the Sun's hidden variability

Every 11 years, the sun undergoes a furious upheaval. Dark sunspots burst forth from beneath the sun's surface. Explosions as powerful as a billion atomic bombs spark intense flares of high-energy radiation. Clouds of gas ...

dateSep 22, 2009 in Space Exploration
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