{
  "id": 10836421,
  "title": "Strange giant planet TOI-1355 b set to vanish from view in 2033",
  "url": "https://urgent.news/2026/09/30/strange-giant-planet-toi-1355-b-set-to-vanish-from-view-in-2033",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-30T02:11:36.000Z",
  "source": {
    "name": "Universe Today",
    "slug": "universe-today",
    "url": "https://www.universetoday.com/articles/strange-giant-planet-toi-1355-b-set-to-vanish-from-view-in-2033"
  },
  "original_language": "en",
  "account": "Astronomers are anticipating the disappearance of a peculiar giant exoplanet called TOI-1355 b from view within the next decade. This finding, published in the Publications of the Astronomical Society of Japan, sheds new light on the fate of hot Jupiters with eccentric orbits. The hot Jupiter, located approximately 805 light-years from Earth, is 2.17 times closer to its star than Earth is to the Sun.\n\nResearchers from Japan and the United States analyzed data from NASA's Transiting Exoplanet Survey Satellite (TESS) and the ground-based Okayama Observatory of Kyoto University. Their study revealed that TOI-1355 b's orbit is slowly tilting, which will cause the planet to become unobservable from Earth in less than seven years. As the planet's transits shift locations, Earth-based telescopes will no longer be able to detect them, making the planet vanish from view in 2033.\n\nTOI-1355 b was initially discovered due to its unusual secondary eclipse, a phenomenon where a planet passes behind its star. This eclipse occurred faster than expected for a circular orbit, leading researchers to investigate the planet's orbit in more detail. The researchers hypothesize that the eccentric orbit of hot Jupiters like TOI-1355 b could be a result of gravitational interactions in their early system, perhaps due to a violent history of migration.\n\nWhile there is a slim chance of finding life on hot Jupiters, their study has significantly contributed to our understanding of planetary formation and evolution. This research could help astronomers unravel the mysteries of planetary migration and potentially apply these findings to other hot Jupiters with eccentric orbits. As the study concludes, the knowledge gained from TOI-1355 b in the coming years and decades will undoubtedly shape our understanding of the cosmos for years to come.",
  "summary": "Since their first discovery in 1995, hot Jupiter exoplanets (hot Jupiters, for short) quickly challenged our understanding of exoplanet formation and evolution, including exoplanetary system architecture. This is because, as their name implies, they orbit at extremely close distances to their host stars, ranging from a few days to a few hours. Some of their orbits are even oval-shaped, called…",
  "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."
}