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www.aanda.org | ||
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sci.esa.int
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| | | | | The Herschel Space Observatory is the largest infrared space observatory launched to date. Equipped with a 3.5 metre diameter reflecting telescope and instruments cooled to close to absolute zero, Herschel observes at wavelengths that have never previously been explored. After a roughly 50-day journey from Earth, Herschel entered its operational orbit around the second Lagrange point of the Sun-Earth system (L2), for a nominal mission lifetime of three years. The Herschel Space Observatory is the largest... | |
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www.messier.seds.org
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blogs.egu.eu
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| | | | | A blog hosted by the European Geosciences Union | |
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www.graymanwrites.com
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