This composite image shows Chandra data in blue and Digitized Sky Survey data in yellow.

这张合成图像使用蓝色来标记钱德拉的数据，以及黄色来标记数字化巡天项目(Digitized Sky Survey)的数据。

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WHEN the Sloan Digital Sky Survey started work in 2000, its telescope in New Mexico collected more data in its first few weeks than had been amassed in the entire history of astronomy.

自从斯隆数字巡天于2000年开始工作，头几个星期它在新墨西哥州的望远镜收集到的数据量就超过了整个天文学历史的积累数据量。

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In addition to the X-rays observed with Chandra, other data critical for this result came from NASA's Spitzer Space Telescope and the ground-based, infrared Two Micron All Sky Survey.

除了钱德拉望远镜观测到的X射线辐射之外，这项结果所需的其他关键数据来自NASA的斯必泽太空望远镜以及地面的2微米红外全天巡天。

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The team went on to use data from a range of other telescopes including the Very Large Telescope, the Two Micron All-Sky Survey and the Spitzer space telescope - each of which sees in a particular set of colours, in turn evidencing stars of varying ages.

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