They used an orbiting X-ray telescope called Chandra to study the way that clusters of galaxies grow. They discovered that this growth is stifled in exactly the way that dark-energy theory predicts.

通过“钱德拉”X射线绕轨太空望远镜对星系团的增长模式进行观测研究，他们发现，正如“暗能量”理论预测的一样，星系团的增长受到了抑制。

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Data from NASA's Chandra X-ray Observatory (purple) are shown here along with optical data from the Hubble Space Telescope (red, green, blue).

美国宇航局钱德拉X射线天文台(紫)以及光学数据：哈勃空间望远镜(红，绿，蓝)。

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This composite image of Cepheus B combines data from the Chandra X-ray Observatory and the Spitzer Space Telescope.

这幅仙王座B的合成图像结合了来自钱德拉X射线观测站和斯皮茨太空望远镜所获得的数据。

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In 1999, it deployed the powerful Chandra X-ray space telescope, with the first female commander at the helm, Eileen Collins.

CNN: NASA weighed retiring Columbia in 2001

Many Americans recognize the unsurpassed science and inspiration that have come from the Hubble Space Telescope over the past two decades, as well as from its less famous sister satellites like the Chandra X-ray Observatory, the Spitzer Space (Infrared) Telescope and the Fermi gamma-ray observatory.

CNN: Space is still the new frontier

The observations from the Chandra space telescope are the deepest X-ray images ever obtained, viewing events that are 10 billion light-years away.

BBC: NEWS | Science/Nature | Deepest X-rays tell merger story