16 Jun '17, 11pm

#NASA 'the Earth's visible edge' 'nearly translucent moon' #FlatEarth #NotaGlobe #FEOffensive

Atmospheric gases scatter blue wavelengths of visible light more than other wavelengths, giving the Earth’s visible edge a blue halo. At higher and higher altitudes, the atmosphere becomes so thin that it essentially ceases to exist. Gradually, the atmospheric halo fades into the blackness of space. This astronaut photograph captured on July 20, 2006, shows a nearly translucent moon emerging from behind the halo. Technically, there is no absolute dividing line between the Earth’s atmosphere and space, but for scientists studying the balance of incoming and outgoing energy on the Earth, it is conceptually useful to think of the altitude at about 100 kilometers above the Earth as the “top of the atmosphere.” The top of the atmosphere is the bottom line of Earth’s energy budget, the Grand Central Station of radiation. It is the place where solar energy (mostly visible light) ...

Full article: https://earthobservatory.nasa.gov/IOTD/view.php?id=7373

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今地中海~中東にいる空母はジョージ・H.W.ブッシュで、F/A-18EとするとVFA-31トムキャッターズかVFA-87ゴールデン・ウォリアーズだな。https://t.co/8ToJtQJXpx https://t.co/TdJMGvY15m

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navy.mil 18 Jun '17, 9pm

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navy.mil 18 Jun '17, 9pm

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earthobservatory.nasa.gov 19 Jun '17, 10pm

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earthobservatory.nasa.gov 17 Jun '17, 10pm

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earthobservatory.nasa.gov 11 Jun '17, 11am

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