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Star Death Seen From Start

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GREENBELT, Md., May 22, 2008 -- Images captured by NASA's Swift satellite have allowed an international team of astronomers to observe, for the first time, a star just as it started to explode. Thousands of previous observations of such star explosions, or supernovae, conducted over the last 100 years occurred only once the blasts were well underway. Galaxies typically host a supernova only once or twice every 100 years, making it nearly impossible to record one as it actually explodes, but in this case Swift was already monitoring another supernova in the galaxy when the second one exploded. Seeing one just moments...Read full article

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    Published: May 2008
    Glossary
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    telescope
    An afocal optical device made up of lenses or mirrors, usually with a magnification greater than unity, that renders distant objects more distinct, by enlarging their images on the retina.
    Chandraemissionexplosiongalaxygamma-rayGoddard Space Flight CenterHubbleNASANews & FeaturesobservatoryphotonicsSN 2007uySN 2008DSoderbergstarsupernovaSwift satellitetelescopex-ray

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