# The amazing disappearing exoplanet

- URL: https://talkfuse.com/story/the-amazing-disappearing-exoplanet/
- Published: 2026-11-12T17:18:10+00:00
- Updated: 2026-11-12T17:34:17+00:00
- Original publisher: Ars Technica
- Original article: https://arstechnica.com/science/2026/11/the-amazing-disappearing-exoplanet/
- Topics: Celebrity, Entertainment

## Key points

- TOI-2535b has stopped crossing in front of its star.
- An unseen companion may have rapidly tilted its orbit.
- Models suggest the companion is at least Saturn-sized.

## Summary

TOI-2535b, a hot Jupiter-sized exoplanet that had been seen crossing its star every eight days, has stopped transiting in front of it from Earth’s viewpoint. Researchers think an unseen companion may be changing the planet’s orbital tilt unusually quickly. The finding matters because transit observations help astronomers study exoplanet atmospheres, and this is the fastest such inclination change observed for a planet orbiting a single star.

The planet’s transit times shifted by as much as six hours, while the time it spent crossing the star grew shorter before the transits disappeared. Researchers modelled 300,000 possible orbital configurations and examined the 100 strongest candidates over a million years; about two-thirds proved unstable. The surviving models suggest the companion must be at least roughly Saturn-sized, with the two planets’ orbits not too widely angled.

---
Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.