In 1990, the first space-based optical telescope, the Hubble space telescope, was launched, providing the deepest, most detailed visible-light view of the universe.

1990年，第一台天基光学望远镜——哈勃太空望远镜——成功发射，拍摄了最深的、最精细的宇宙可见光景象。

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In visible detecting system based on space targets, the analysis and estimation to the detecting ability is one of premises of the camera design.

在空间目标可见光探测系统中，对探测能力的分析和评估是进行可见光相机设计的前提之一。

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"The song is a musical allusion to one of the most quintessential New Orleans and Mardi Gras songs, 'They All Ask'd For You, ' by the Meters, " says Harris, who fronts the New York-based Visible From Space.

CNN: Video: Love letter to New Orleans

Now only visible with the largest ground-based telescopes or from space, 1999 RQ36 currently lies about one earth-sun distance away.

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