The scientists have been studying the cloud using WISE, Nasa's infra-red space telescope that is capable of detecting dark objects.

科学家一直以来都在使用美国宇航局的红外线太空望远镜WISE研究奥特云，这个太空望远镜具有探测暗星体的能力。

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One potential sacrifice is WFIRST, an infra-red space telescope intended for launch in 2020.

其中最有可能被牺牲的项目是计划在2020年推出的红外线太红望远镜。

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One potential sacrifice is WFIRST, an infra-red space telescope intended for launch in 2020.

一个潜伏的捐躯者是WFIRST——一个计划于2020年发射的红外望远镜项目。

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Subsequent observations with an infra-red telescope, which can see things that are too cool to shine with visible light, showed that it was a very faint star so faint that it is off the bottom of astronomers' scale of stellar classification.

ECONOMIST: Twinkle, twinkle, giant planet