Untitled
Untitled
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8bitfuture:

This is the sunshield on NASA’s James Webb Space Telescope.
This test unit was unfurled to full-size for the first time last week and “worked perfectly”, according to NASA.

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.
The Sunshield separates the observatory into a warm sun-facing side and a cold side where the sunshine is blocked from interfering with the sensitive infrared instruments. The infrared instruments need to be kept very cold (under 50 K or -370 degrees F) to operate.   The Sunshield protects these sensitive instruments with an effective sun protection factor or SPF of 1,000,000 (suntan lotion generally has an SPF of 8-50).

In addition to providing a cold environment, the Sunshield provides a thermally stable environment. This stability is essential to maintaining proper alignment of the primary mirror segments as the telescope changes its orientation to the sun.
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pixelatedcrown:

self portraits
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pepelie:

能年玲奈
pepelie:

能年玲奈
pepelie:

能年玲奈
pepelie:

能年玲奈
pepelie:

能年玲奈
pepelie:

能年玲奈
pepelie:

能年玲奈
pepelie:

能年玲奈
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tomo-watch00000:

【追加画像アリ】彼女は一体、誰 ?! カザフスタンバレーボール界、透明感あふれる美女発見 | Amp.
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tomo-watch00000:

【追加画像アリ】彼女は一体、誰 ?! カザフスタンバレーボール界、透明感あふれる美女発見 | Amp.
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kwwwsk:

sayusayukawaii:

アジアジュニア女子バレーボール選手権大会に17歳の美少女バレーボーラーが出現しネット騒然:ハムスター速報

SABINA
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7at1stroke:

ヤマザキマリ Mari Yamazaki ‏@Thermari  
紀元3世紀の謎の海洋生物モザイクですが @yuuuca @smi_smi_ @momokanazawa さんらが協力して下さった結果、「シビレエイ」の一種であるという事が判明いたしました! http://en.wikipedia.org/wiki/Torpedo_torpedo … pic.twitter.com/l9aIhiouhq
7at1stroke:

ヤマザキマリ Mari Yamazaki ‏@Thermari  
紀元3世紀の謎の海洋生物モザイクですが @yuuuca @smi_smi_ @momokanazawa さんらが協力して下さった結果、「シビレエイ」の一種であるという事が判明いたしました! http://en.wikipedia.org/wiki/Torpedo_torpedo … pic.twitter.com/l9aIhiouhq
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fyeahkikomizuhara:

* “chillin’ at yoyogi park. sister’s day ❤️”