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Last updated on April 18, 2014 at 1:21 EDT
Helium vent connected to Ariane 5 fairing
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Helium vent connected to Ariane 5 fairing

May 26, 2009
A helium vent connected to the fairing of the Ariane 5 in the final assembly building in the launch site on 12 May 2009. The Herschel cryostat will be flushed with helium until the day before launch when the cryostat will be closed, the vents and auxiliary connections removed and the doors of the fairing shut.