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First-ever image captures two black holes orbiting each other |

Word Count: 648 | Estimated Reading Time: 4 minutes

For the first time in history, scientists have captured an image of two black holes orbiting each other, confirming a long-held astronomical theory. Researchers from the University of Turku in Finland observed the twin black holes in the quasar OJ287, located roughly 5 billion light-years from Earth. Using data from a network of radio telescopes, including the RadioAstron satellite, astronomers were able to detect the faint fluctuations of radio light and identify the intense particle jets emitted by each black hole. The smaller black hole is about 150 million times the mass of our Sun, while its larger companion weighs roughly 18 billion solar masses, locked in a 12-year orbital dance.

Black holes locked in quasar OJ287

Quasars are extremely bright galactic cores powered by supermassive black holes consuming surrounding gas and dust. OJ287 has long been suspected to host not just one, but two black holes, based on regular 12-year fluctuations in its light output. This new observation provides the first visual confirmation of this binary system, offering an unprecedented glimpse into the dynamics of supermassive black holes.The team used a combination of Earth-based radio telescopes and the RadioAstron satellite, whose antenna extended halfway to the Moon, significantly improving image resolution. By analyzing the particle jets emitted by the black holes, researchers confirmed that both objects are present and circling each other, exactly as theoretical models had predicted. Previous Earth-only observations lacked the resolution to make such a definitive identification.

Implications for astronomy

This discovery not only confirms decades-old predictions about binary black holes but also opens new avenues for studying gravitational interactions and the evolution of galaxies. Understanding these cosmic pairings can help scientists refine models of how supermassive black holes grow and influence their surrounding environments. Future high-resolution observations may reveal even more details about the behavior of these intergalactic giants.

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