Back in 1990, after significant cost overruns and delays, the Hubble Space Telescope was finally carried into orbit aboard the space shuttle. Astronomers rejoiced, but within a few weeks, elation turned to dread. Hubble wasn't able to achieve anything like the results anticipated, because, simply put, its 2.4-meter mirror was made in the wrong shape.

中文翻译：

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前所未见：詹姆斯韦伯太空望远镜将让我们几乎回到大爆炸

早在 1990 年，经过严重的成本超支和延误，哈勃太空望远镜终于被航天飞机送入轨道。天文学家欢欣鼓舞，但几周后，兴高采烈变成了恐惧。哈勃无法达到预期的结果，因为，简单地说，它的 2.4 米镜子的形状是错误的。