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Astronomers solved a 15-year mystery when Chandra X-ray data revealed a hidden black hole or neutron star feeding on a massive star that faked 27 supernova explosions.
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NASA reveals rare images of 16 glistening galaxies captured by the Chandra X-Ray Observatory.
NASA's Chandra X-ray Observatory has unveiled a new gallery titled "Galactic Gems," showcasing 16 distant galaxies in high-detail X-ray views.
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