金色之眼:韦伯望远镜的巨型镜面揭幕

见证NASA有史以来最大的太空望远镜闪耀的核心

詹姆斯·韦伯太空望远镜的主镜在位于马里兰州格林贝尔特的NASA戈达德太空飞行中心的洁净室揭幕。

图片来源:NASA/克里斯·冈恩

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昨天,自今年早些时候完成组装以来,NASA詹姆斯·韦伯太空望远镜的6.5米镜面首次以其全部金色荣耀亮相。几个月来,黑色的罩子遮盖了镜面18个咖啡桌大小的六边形组件中的每一个,在工程师组装和测试其他望远镜组件时保护着它们。每个组件都由轻质铍制成——一种暗淡、灰色、有毒的金属。原子薄层的汽化金赋予了它们阳光般的外观,并提高了镜面对红外光的反射率。这将对望远镜在2018年发射时观测宇宙中第一批恒星和星系微弱红外光芒的任务至关重要。

在这篇最近的深度专题报道中阅读更多关于詹姆斯·韦伯的信息。

Lee Billings is a science journalist specializing in astronomy, physics, planetary science, and spaceflight, and is a senior editor at 大众科学. He is the author of a critically acclaimed book, Five Billion Years of Solitude: the Search for Life Among the Stars, which in 2014 won a Science Communication Award from the American Institute of Physics. In addition to his work for 大众科学, Billings's writing has appeared in the New York Times, the Wall Street Journal, the Boston Globe, Wired, New Scientist, Popular Science, and many other publications. A dynamic public speaker, Billings has given invited talks for NASA's Jet Propulsion Laboratory and Google, and has served as M.C. for events held by National Geographic, the Breakthrough Prize Foundation, Pioneer Works, and various other organizations.

Billings joined 大众科学 in 2014, and previously worked as a staff editor at SEED magazine. He holds a B.A. in journalism from the University of Minnesota.

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