The image, released Monday, combines visible-light data from the Hubble Space Telescope (yellow) and X-ray data from the Chandra X-ray Observatory (blue).
周一发布的图片结合了哈勃太空望远镜记录的可见光数据(黄色)和钱德拉X射线记录的X射线数据(蓝色)。
Previous studies with Hubble and NASA's Chandra X-ray Observatory found evidence of dark matter in entire clusters of galaxies such as the Bullet cluster.
此前由哈勃望远镜和NASA的钱德拉X射线望远镜联手，观测整个星系群(例如：Bullet Cluster)时曾找到过暗物质的存在证据。
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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