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Scientists have detected light echoing from behind a black hole for the first time. Caspar/Pixabay If you know what a black hole is, you re probably aware that it can contain as much mass as billions of stars, compressed into a much smaller space, and have such a powerful gravitational pull that even light can t escape its grasp. But even though it s not possible to see into a black hole, it is possible to see light that s coming from behind one. In a paper published July 28, 2021, in the scientific journal Nature, researchers from Stanford University, Penn State University and Netherlands Institute for Space Research (SRON) describe the first-ever observation of light apparently being emitted from the far side of a supermassive black hole located in I Zwicky 1, a galaxy 800 million light-years away from Earth.

Dan wilkinsAlbert einsteinCaspar pixabayRoger blandfordHigh throughputx ray spectroscopy missionNetherlands institute for space researchKavli institute for particle astrophysicsEuropean space agency esa xmm newtonEuropean space agencyPenn state universityStanford universityNational accelerator laboratoryNetherlands instituteSpace researchX ray multi mirror missionSpace agency