{
  "id": 41877,
  "title": "Hubble telescope takes one of the most detailed looks at neighboring Andromeda galaxy ever — Space photo of the week",
  "url": "https://urgent.news/2026/08/02/hubble-telescope-takes-one-of-the-most-detailed-looks-at-neighboring",
  "topic": "science",
  "section": "Science",
  "published": "2026-08-02T11:00:00.000Z",
  "source": {
    "name": "Live Science",
    "slug": "live-science",
    "url": "https://www.livescience.com/space/astronomy/hubble-telescope-takes-one-of-the-most-detailed-looks-at-neighboring-andromeda-galaxy-ever-space-photo-of-the-week"
  },
  "original_language": "en",
  "account": "Andromeda galaxy, also known as M31, is a colossal spiral galaxy situated an impressive 2.5 million light-years away in the constellation Andromeda. As the closest large spiral galaxy to Earth, it serves as a valuable laboratory for astronomers studying galaxy formation and evolution. The latest revelation about this celestial neighbor comes from a new analysis of data collected by the Hubble Space Telescope, published in The Astrophysical Journal on July 27, 2026.\n\nThe study reveals that Andromeda has been gradually reducing its rate of star formation over the past 500 million years. This trend suggests that the galaxy is winding down following a major burst of activity that occurred around 2 billion years ago. This initial burst of star formation is believed to have created approximately a fifth of all stars currently residing in Andromeda. This development was most likely triggered by a merger with a compact elliptical galaxy called M32, which now orbits the Andromeda galaxy.\n\nAccording to the research, the rate of star formation in Andromeda fell from one solar mass per year 500 million years ago to just one-fifth of a solar mass each year today. The most recent star formation activity seems to be confined to a ring approximately 32,000 light-years away from the galaxy's core. This gradual decline in star formation activity rather than a sudden halt or depletion of materials indicates that Andromeda's evolution is not an abrupt process.\n\nThe researchers also delved into the possible influence of M32 on Andromeda's star formation slowdown. Areas closest to M32 have shown a more recent drop in star formation, which could imply that the companion galaxy might have contributed to the decrease. However, the evidence for this connection remains inconclusive at present.\n\nLead study co-author Ben Williams, an astronomer at the University of Washington, emphasized the importance of examining individual stars as they serve as the \"fossil record\" of the galaxy's formation process. Hubble is uniquely positioned to provide high-resolution spatial mapping over a vast area, essential for capturing this vital information. While further study of Hubble's archive is underway, the team also plans to utilize data from NASA's upcoming Nancy Grace Roman Space Telescope. Scheduled for launch on August 30, the Roman Space Telescope will be able to survey the entire Andromeda galaxy and its surrounding halo with unparalleled detail.",
  "summary": "The Hubble Space Telescope has provided astronomers with a detailed look at the Andromeda galaxy, revealing that the neighboring galaxy has been slowing its production of new stars over the past 500 million years. This research, published in The Astrophysical Journal, suggests that Andromeda, which is similar in structure to the Milky Way but twice as massive, is winding down from a period of intense star formation that occurred about 2 billion years ago. The study, which used two major Hubble surveys to map roughly two-thirds of Andromeda's disk, found that the galaxy's star formation rate has declined from around one solar mass per year 500 million years ago to just one-fifth of a solar mass each year today. The most recent star formation has been concentrated in a ring about 32,000 light-years from the galaxy's center, and the decreasing activity within this region is largely responsible for the overall decline. While it is unclear whether the nearby galaxy M32 has contributed to the slowdown, the findings offer valuable insights into the evolution of large spiral galaxies.",
  "key_points": [
    "Andromeda galaxy, 2.5 million light-years away, studied by Hubble",
    "Star formation rate in Andromeda declined 500 million years ago",
    "M32 galaxy may have influenced Andromeda's star formation slowdown"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 3,
    "also_reported_by": [
      {
        "outlet": "Space.com",
        "title": "The 1st 'three-headed' asteroid | Space photo of the day for Aug. 3, 2026",
        "url": "https://urgent.news/2026/08/03/the-1st-three-headed-asteroid-space-photo-of-the-day-for-aug-3-2026",
        "published": "2026-08-03T14:20:32.000Z"
      },
      {
        "outlet": "Ars Technica",
        "title": "Lego deploys Hubble Space Telescope as detailed desktop model",
        "url": "https://urgent.news/2026/08/03/lego-deploys-hubble-space-telescope-as-detailed-desktop-model",
        "published": "2026-08-03T19:21:16.000Z"
      }
    ]
  },
  "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."
}