No Earth based telescope could ever take a similar picture.

地球上没有一台望远镜可以拍到类似的照片。

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As such, it is already the most powerful array-based telescope in Africa.

这个已经是非洲最强力的列阵望远镜了。

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How much harder would it be to build a moon-based telescope that didn't need any?

建立一个我们并不需要的在月球上的望远镜，你能想象这难度会大多少吗？

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The result is the social-science equivalent of a particle accelerator or a space-based telescope, says Robert Willis, a University of Michigan economics professor and the survey's principal investigator.

ECONOMIST: Ageing America

This, combined with a new digital camera developed for it by Mitsubishi Electric, will make it the most powerful ground-based optical telescope around.

ECONOMIST: Japan��s new telescope

Thanks to observations made with the Gemini ground-based optical telescope in Hawaii, it quickly became clear that GRB130427A was superbright primarily because it lay only a few billion light years away.

CNN: Why gamma-ray burst shocked scientists