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New generation of cooled infrared space telescopes

机译：新一代冷却式红外太空望远镜

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Infrared astronomy explores the cold and dusty as well as the young and highly redshifted universe. Observations at mid and far infrared wavelengths require cold space telescopes, the detectors have to be cooled to temperatures 0.1 K < T < 7 K. The first generation of small infrared space telescopes was launched into geocentrical orbits and completely cooled with liquid helium. The next generation has much larger telescope mirrors launched warm. Locating these satellites on an earth trailing orbit or in the Lagrange Point 2 (L2), allows stable thermal conditions and radiation cooling of the telescope mirrors down to 40 K. The new infrared missions will address fundamental questions, like the search for the first light in the universe as well as for earth-like planets at other stars.
机译：红外天文学探索寒冷，尘土飞扬，年轻而高度红移的宇宙。在中红外和远红外波长的观测需要冷太空望远镜，探测器必须冷却到0.1 K

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