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An Intercontinental Data Grid for Astronomy


As telescope technologies improve, the amount of data astronomers are gathering is growing exponentially, giving rise to major data management challenges. To handle their data, the NSF-supported National Optical Astronomy Observatory Science Archive uses a continent-spanning data grid based on the Storage Resource Broker system developed at the San Diego Supercomputer Center at UC San Diego. The archive holds some 15 terabytes of astronomical data in more than 800,000 files distributed across three sites in Arizona (NOAO/Tucson), Illinois (NCSA), and Chile (NOAO/CTIO). This mosaic of images of the Large Magellanic Cloud-the breeding ground for new stars and cemetery for dead stars-will form part of the archive.
Image courtesy of R.C. Smith, S. Points, the MCELS Team and NOAO/AURA/NSF.
Source: San Diego Supercomputer Center, UC San Diego

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