![X-ray astronomy / Supermassive black holes / Chandra X-ray Observatory / Hubble Deep Field / Lockman Hole / MS 0735.6+7421 / Astronomy / Space / Ursa Major constellation X-ray astronomy / Supermassive black holes / Chandra X-ray Observatory / Hubble Deep Field / Lockman Hole / MS 0735.6+7421 / Astronomy / Space / Ursa Major constellation](https://www.pdfsearch.io/img/c018496061fa8d57b202f86eda84a88b.jpg)
| Document Date: 2009-05-28 10:30:37 Open Document File Size: 44,71 KBShare Result on Facebook
City Cambridge / / Country United States / / Facility Smithsonian Astrophysical Observatory / / Organization Smithsonian Center for Astrophysics / Smithsonian / National Aeronautics and Space Administration / Harvard / / ProvinceOrState Massachusetts / / Technology X-ray / / URL http /
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