{
  "id": 185823,
  "title": "'Little red dots' may be pulsating monster stars that created early-universe black holes",
  "url": "https://urgent.news/2026/08/05/little-red-dots-may-be-pulsating-monster-stars-that-created-early",
  "topic": "science",
  "section": "Science",
  "published": "2026-08-05T18:40:01.000Z",
  "source": {
    "name": "Phys.org",
    "slug": "phys-org",
    "url": "https://phys.org/news/2026-08-red-dots-pulsating-monster-stars.html"
  },
  "original_language": "en",
  "account": "Scientists have proposed that mysterious \"little red dots\" observed in early universe images from the James Webb Space Telescope could be the result of massive stars pulsating and ejecting gas. These supermassive stars, around 100,000 times the mass of the sun, appear compact and intensely bright, exhibiting unusual spectral patterns that current models of young galaxies or active galactic nuclei cannot explain. While the LRDs show hydrogen in unexpected ways, they lack the X-ray or radio emissions typically associated with growing supermassive black holes. Researchers found that these massive stars undergo discrete, powerful pulsation episodes, ejecting shell-like gas structures. This unusual behavior generates the compact gas shells observed around LRDs in James Webb images. The spectral signatures and morphology of the stars match the characteristics of the mysterious dots. The ejected material is primarily hydrogen and helium, but also contains nitrogen, a finding that aligns with observations of LRDs displaying nitrogen-rich spectra. Over time, these stars continue to evolve and eventually undergo direct collapse, forming seeds for supermassive black holes. The researchers aim to refine their model to generate detailed predictions for LRD spectra, allowing future James Webb observations to test their theory.",
  "summary": "Astronomers have speculated about the mysterious \"little red dots\" seen through the James Webb Space Telescope's images of the early universe: They could be galaxies, black holes, quasi-stars, starbursts ... or something else entirely.",
  "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."
}