The article about the 30th anniversary of the Hubble Space Telescope (June pp12–13) should have said that the spherical aberration from which it suffered was caused by the curvature of its mirror not bringing light to focus all at the same point.

中文翻译：

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更正

关于哈勃太空望远镜成立30周年（6月，第12-13页）的文章应该说，它遭受的球面像差是由其镜面的曲率引起的，该镜面的曲率没有使光线同时聚焦。