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。

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.

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即使每年都有几颗类似体积的小行星飞临地球，近地天体项目的望远镜也时常观测不到，因为巡天望远镜是为寻找较大，较远的太空岩石。

Even though asteroids of roughly that size fall to Earth a few times a year, the NEO Program telescopes often miss them because the survey is tuned to search for larger, more distant rocks.

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