News tagged with ultraviolet rays

X-Ray Emission from Young Stars

(PhysOrg.com) -- The star TW Hydrae is located about 150 light-years from earth in the direction of the constellation of Hydrae, the Water Snake. This star is relatively young -- at about 10 million years old it has passed ...

dateFeb 05, 2010 in Astronomy
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Weathering System Cuts Product Testing Time

(PhysOrg.com) -- Engineers design a new auto paint, a better solar device or a sturdier vinyl siding. But how can they know if the new products deserve a five-year, 10-year or 30-year warranty? Better a leap in technology ...

dateSep 28, 2009 in Engineering
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Ozone layer depletion leveling off

By merging more than a decade of atmospheric data from European satellites, scientists have compiled a homogeneous long-term ozone record that allows them to monitor total ozone trends on a global scale - and the findings ...

dateSep 21, 2009 in Earth Sciences
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Massive Stars Near the Galactic Center

The Central Molecular Zone (CMZ) of our galaxy is a giant complex of molecular gas and dust situated in the innermost 700 light-years of the Milky Way. Although the galaxy is over 100,000 light-years in size, nearly 10% of ...

dateAug 28, 2009 in Astronomy
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