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The image appeared as a ring-like structure, representing the gravitationally lensed and redshifted emission around the central supermassive black hole, M87*, located at the galactic nucleus. However, application of various data analysis and imaging heuristics resulted in divergent representations of M87* fine-scale features\n                    <jats:sup>3,5\u20137<\/jats:sup>\n                    , with some external analyses even challenging the fundamental ring-like morphology of the source\n                    <jats:sup>8,9<\/jats:sup>\n                    . Such difficulties arise as a consequence of the inherent sparsity of the very\u00a0long baseline interferometry measurements, making interferometric image reconstruction an inadequately constrained problem. Moreover, the solution is sensitive to instrument calibration, post-processing algorithms and imaging hyperparameters. Here we apply an independent imaging algorithm that we have developed\u00a0to the M87* dataset that is free from prescriptive morphological priors and founded on observables immune to instrument calibration errors. We reconstruct the black hole shadow image and unequivocally reproduce a ring-like morphology, with an\u00a0angular diameter of\u00a042.2\u2009\u00b1\u20091.5\u2009\u03bcas corresponding to a black hole mass of 6.5\u2009\u00b1\u20090.5\u2009billion solar masses assuming nominal scaling parameters, observed at an inclination angle of approximately 20\u00b0 from the approaching jet.\n                  <\/jats:p>","DOI":"10.1038\/s41586-026-11241-9","type":"journal-article","created":{"date-parts":[[2026,11,11]],"date-time":"2026-11-11T16:02:12Z","timestamp":1794412932000},"page":"317-323","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Independent interferometric observable confirms black hole shadow in M87*"],"prefix":"10.1038","volume":"659","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9372-4611","authenticated-orcid":false,"given":"Samuel","family":"Lai","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"},{"role":"corresponding-author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1602-7868","authenticated-orcid":false,"given":"Nithyanandan","family":"Thyagarajan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4264-3509","authenticated-orcid":false,"given":"O. Ivy","family":"Wong","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Foivos","family":"Diakogiannis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2026,11,11]]},"reference":[{"key":"11241_CR1","doi-asserted-by":"publisher","first-page":"L2","DOI":"10.3847\/2041-8213\/ab0c96","volume":"875","author":"Event Horizon Telescope Collaboration","year":"2019","unstructured":"Event Horizon Telescope Collaboration et al. First M87 Event Horizon Telescope results. II. Array and instrumentation. Astrophys. J. Lett. 875, L2 https:\/\/doi.org\/10.3847\/2041-8213\/ab0c96 (2019).","journal-title":"Astrophys. J. 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