TED - Jeremy Kasdin: The flower-shaped starshade that might help us detect Earth-like planets

TED JeremKasdin starshade-occulter pale-blue-dot index

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TED-2014-Kasdin-starshade

• aerospace engineer. 工程师，computer engineer
• the starshade, an orbiting "occulter" that blocks light from distant stars that ordinarily outshine their dim planets. 光环
• one fifth of them (stars) have an Earth-like planet that might be able to harbor life, but we haven't seen any of them. We've only detected them indirectly. 笛卡尔：我思故我在；贝克莱 (伯克利)：存在就是被感知
• This is NASA's famous picture of the pale blue dot.
• take a picture of the Earth from six billion kilometers. 十亿 -> 百亿 -> 千亿：地球45亿年，宇宙137亿年，阿里巴巴2000亿美元。
• creating that very bright image that washes out the planet. 互联网的前景是如此明亮，以至于不得不戴上墨镜
• Lyman Spitzer, the father of the space telescope, in 1962, and he took his inspiration from an eclipse. Well the moon is casting a shadow down on the Earth. We put a telescope or a camera in that shadow, we look back at the sun, and most of the light's been removed and we can see that dim, fine structure in the corona. 何为正，何为邪。Deep Learning：fine structure
• We call that our flower petal starshade.
• brilliant engineers, colleagues of mine at JPL.计算机科学中的谷歌工程师
• Those four petals were built by four undergraduates doing a summer internship at JPL. 微软本科实习生

JPL (Jet Propulsion Laboratory)： managed for NASA by Caltech。
DSN (NASA Deep Space Network): established in 1958