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16 September 2026

Brief

Simulations suggest a Venusian moon would have crashed into the planet

New computer simulations suggest Venus may once have had a moon that spiralled inward and hit the planet instead of drifting away like Earth's. The claim rests on modelling alone, and the material available here does not identify the researchers, the journal or the peer-review status of the work.

Computer simulation illustrating how a black
Photograph — Computer simulation illustrating how a black: Christian M. Fromm, Julius-Maximilian University, Würzburg · CC BY 4.0 source

Computer simulations suggest that if Venus ever had a moon, the planet's very slow rotation would have worked against it. Rather than gradually drifting outward the way Earth's moon does, a Venusian moon would likely spiral inward until it crashed into the planet, and larger moons would fall faster, according to the account of the work.

Two boundaries matter. The result comes from modelling, not from direct observation of a moon or of debris around Venus today. And the material available to this desk does not name the researchers, the journal, or whether the work has been peer reviewed, so this should be read as a simulation-based possibility rather than a confirmed chapter of Venus's history.

Our reading

This desk covers findings where the measured or modelled result can be separated from the authors' interpretation, and here that separation is straightforward but the supporting detail is sparse. Readers who follow planetary science get an intriguing mechanism linking a planet's spin to the fate of its satellites, but not yet a result they can lean on. Anyone weighing it should treat it as a hypo…

What to do or watch

Watch for the underlying study to appear with named authors and peer review, and for independent groups to reproduce the simulations. Until then the open question is whether Venus ever had a moon at all.

Source details and supporting facts

Each line is stated by the page named above it.

Stated by sciencedaily.com

  • Venus may have once had a moon, but new research suggests the planet's incredibly slow rotation could have doomed it.
  • Computer simulations showed that instead of gradually drifting away like Earth's moon, a Venusian moon would likely spiral inward until it crashed into the planet, with larger moons falling even faster.

Sources

  1. ScienceDailyText stored 16 September 2026

How this story was checked. Written from the 1 page listed above, stored 16 September 2026; claims checked against that stored text on 16 September 2026.

What that means
  • 2 of 2 reported statements were confirmed against the page that carries them; the rest were removed rather than published.
  • Figures in the text were required to appear in the stored source text: yes. Identifiers: yes.
  • The check reads stored text only: no claim rests on a fresh look that did not happen.
  • Where the reporting was silent, the text says so instead of filling the gap.

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