{
  "id": 19527514,
  "title": "Is this iconic black hole image accurate? New study delivers an independent result",
  "url": "https://urgent.news/2026/11/11/is-this-iconic-black-hole-image-accurate-new-study-delivers-an",
  "topic": "world",
  "section": "World",
  "published": "2026-11-11T17:28:44.000Z",
  "source": {
    "name": "The Conversation AU",
    "slug": "the-conversation-au",
    "url": "https://theconversation.com/is-this-iconic-black-hole-image-accurate-new-study-delivers-an-independent-result-296146"
  },
  "original_language": "en",
  "account": "On April 10th, 2019, the Event Horizon Telescope (EHT) Collaboration unveiled the first image of a black hole, specifically the one at the heart of the galaxy M87, located approximately 55 million light-years away from Earth. This remarkable image, featuring a ring-like structure, became an instantly recognizable symbol of scientific achievement, as it closely matched predictions made by Einstein's theory of general relativity. The EHT Collaboration achieved this unprecedented feat by essentially creating a virtual telescope the size of the entire planet through the coordinated efforts of radio telescopes across the globe. This method enabled them to capture unparalleled detail from such vast cosmic distances. The EHT Collaboration consisted of multiple independent imaging teams, all of which produced ring-like structures in their respective analyses. However, minor discrepancies in the representation of the black hole's fine-scale features suggested possible human and algorithmic biases in the imaging process. A new study published in Nature attempted to address these discrepancies by employing a novel technique known as \"closure invariants,\" which combines triplets of telescope measurements instead of the more common pairs. This approach not only mitigated atmospheric and instrumental errors but also provided a clearer picture of the black hole's structure. To ensure the accuracy of their findings, the researchers utilized a machine learning imaging method called GenDIReCT, which was initially trained on terrestrial images unrelated to black holes. This method was then validated using a diverse range of non-ring structures, including real datasets of other galaxies. The results confirmed the ring structure's consistency with a black hole possessing a mass equivalent to 6.5 billion Suns, observed nearly directly face-on. Upon comparing their findings with those of the EHT Collaboration, the researchers found that their results were consistent in both diameter and orientation. While minor variations existed in the ring's width and surface brightness, the overall structure remained remarkably similar, thereby providing a fresh perspective on the black hole's appearance while resolving previous discrepancies. This study not only validates the original EHT findings but also showcases the potential applications of their technique in other fields, such as medical imaging and earthquake mapping.",
  "summary": "New results provide a fresh perspective on the iconic ring structure of the M87 black hole.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}