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Opis
English: NASA: The Sunshield on NASA's James Webb Space Telescope is the largest part of the observatory—five layers of thin membrane that must unfurl reliably in space to precise tolerances. Last week, for the first time, engineers stacked and unfurled a full-sized test unit of the Sunshield and it worked perfectly.

The Sunshield is about the length of a tennis court, and will be folded up like an umbrella around the Webb telescope’s mirrors and instruments during launch. Once it reaches its orbit, the Webb telescope will receive a command from Earth to unfold, and separate the Sunshield's five layers into their precisely stacked arrangement with its kite-like shape.

The Sunshield test unit was stacked and expanded at a cleanroom in the Northrop Grumman facility in Redondo Beach, California.
Datum
Vir http://www.nasa.gov/content/goddard/nasas-webb-sunshield-stacks-up-to-test/#.U9PIrfldXJZ
Avtor Chris Gunn - NASA Goddard Space Flight Center
Chris Gunn    wikidata:Q110278636
 
Chris Gunn
Opis ameriški fotograf
Normativna kontrola
creator QS:P170,Q110278636

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Public domain Ta datoteka je v javni domeni, ker jo je izdelala izključno NASA. Avtorskopravna politika NASE pravi, da »gradivo NASE ni avtorskopravno varovano, razen če je navedeno drugače.« (glejte Template:PD-USGov, stran z avtorskopravno politiko NASE ali politiko uporabe slik JPL.)
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10. julij 2014

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trenutno16:31, 26. julij 2014Sličica za različico z datumom 16:31, 26. julij 20144.928 × 3.280 (645 KB)Liandrei{{Information |Description ={{en|1=NASA: The Sunshield on NASA's James Webb Space Telescope is the largest part of the observatory—five layers of thin membrane that must unfurl reliably in space to precise tolerances. Last week, for the first time...

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