# Does the anomaly occur at other planets? · Earth flyby anomaly

> Three answers have been proposed. None is ahead on the evidence yet. Three are still possible.

Source: https://mysteriesdept.com/mysteries/flyby-anomaly/questions/QST0CWYE9ZT1W27/does-the-anomaly-occur-at-other-planets  
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Updated: 2026-10-26T11:57:26+00:00  

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# Does the anomaly occur at other planets?

Asked 26 Oct 2026 by [**apollo** ](https://mysteriesdept.com/u/apollo)·Part of [What produces the velocity changes seen in some Earth flybys?](https://mysteriesdept.com/mysteries/flyby-anomaly/questions/QST0CWYE98C43P6/what-produces-the-velocity-changes-seen-in-some-earth-flybys)·3 answers·0·0 following

**Three answers, none ahead** None is ahead yet. See what would settle it.

 

## Where it stands

Three answers have been proposed. None is ahead on the evidence yet. Three are still possible.

## Why it matters

An effect tied to Earth's rotation should have analogues at other rotating planets; searches are limited by how well other gravity fields are known⁠[[1]](https://mysteriesdept.com/sources/SRC0CWYE07A1VKE/the-puzzle-of-the-flyby-anomaly)⁠[[2]](https://mysteriesdept.com/sources/SRC0CWYE1EC5ADC/a-possible-flyby-anomaly-for-juno-at-jupiter).

## Answers 3



[**Juno's Jupiter perijoves show an analogous anomaly.** ](https://mysteriesdept.com/mysteries/flyby-anomaly/answers/ANS0CWYEHA63D9P/junos-jupiter-perijoves-show-an-analogous-anomaly)

Not tested enough to call either way

Evidence: 1 for

Still possible



[**None of these.** ](https://mysteriesdept.com/mysteries/flyby-anomaly/answers/ANS0CWYEJ1M19PM/none-of-these)

Not tested enough to call either way

Evidence: none yet

Still possible



[**Only Earth flybys show it, because only Earth's field is known well enough or because the cause is specific…** ](https://mysteriesdept.com/mysteries/flyby-anomaly/answers/ANS0CWYEHST1R1E/only-earth-flybys-show-it-because-only-earths-field-is-known)

Not tested enough to call either way

Evidence: none yet

Still possible

## History

1. 2009[Turyshev & Toth puts forward: only Earth flybys show it, because only Earth's field is known well enough or because the cause is specific…](https://mysteriesdept.com/sources/SRC0CWYE07A1VKE/the-puzzle-of-the-flyby-anomaly)
1. 2018[Acedo et al. puts forward: juno's Jupiter perijoves show an analogous anomaly.](https://mysteriesdept.com/sources/SRC0CWYE1EC5ADC/a-possible-flyby-anomaly-for-juno-at-jupiter)
1. 2018[Acedo et al.: an anomalous acceleration of a few mm/s² near perijove is claimed from published data.](https://mysteriesdept.com/sources/SRC0CWYE1EC5ADC/a-possible-flyby-anomaly-for-juno-at-jupiter)For: Juno's Jupiter perijoves show an analogous anomaly.
1. 26 Oct 2026Asked on this site

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Where it fits

Earth flyby anomaly

[**What produces the velocity changes seen in some Earth flybys?** ](https://mysteriesdept.com/mysteries/flyby-anomaly/questions/QST0CWYE98C43P6/what-produces-the-velocity-changes-seen-in-some-earth-flybys)Key question · most likely an error or inconsistency in trajectory modelling and navigation software (reference frames, spheres of…

**Does the anomaly occur at other planets?** You're here · 3 answers, inconclusive

[If the anomaly is real new physics, what kind?](https://mysteriesdept.com/mysteries/flyby-anomaly/questions/QST0CWYE9R02K3H/if-the-anomaly-is-real-new-physics-what-kind)Open · 4 answers, inconclusive

[What decides which flybys show an anomaly?](https://mysteriesdept.com/mysteries/flyby-anomaly/questions/QST0CWYE9G65APR/what-decides-which-flybys-show-an-anomaly)Open · 5 answers, inconclusive

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