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Astrophysicists working with ground based detectors at the South Pole and balloon borne instruments are closing in on such structures, and may report their findings soon.

天体物理学家使用南极陆基探测器及球载仪器，正越来越近地观测这些云系，也许不久会报告他们的观测结果。

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This paper describes the electric and electronic apparatus of balloon borne telescope for far infrared observation of the sun.

本文介绍了一个用于观测太阳远红外辐射的球载望远镜电气设备。

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Future aperture upper limits on balloon-borne telescopes are expected to be some 2.5-meters, about the size of the Hubble Space Telescope.

FORBES: Budgets Nudge NASA Toward Balloon-Based Planetary Science: First Target? Comet ISON

But the researchers who have been flying a balloon-borne telescope in Antarctica seem to have saved us from any mind-bending alternatives.

BBC: Pictures of the early Universe

To date, balloon-borne activities have centered around heliophysics and astrophysics that have not required precision-pointing, says Near-Earth Object (NEO) program officer Rob Landis at NASA headquarters.

FORBES: Budgets Nudge NASA Toward Balloon-Based Planetary Science: First Target? Comet ISON