this post was submitted on 06 Feb 2026
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Jupiter is slightly smaller and flatter than scientists thought for decades, a new study finds.

Researchers used radio data from the Juno spacecraft to refine measurements of the solar system's largest planet. Although the differences between the current and previous measurements are small, they are improving models of Jupiter's interior and of other gas giants like it outside the solar system, the team reported Feb. 2 in the journal Nature Astronomy.

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[–] morphballganon@lemmynsfw.com 3 points 1 day ago (1 children)

Wouldn't something of that size necessarily turn spherical due to its mass?

Or is there enough inertia from the planet spinning that it bulges at the equator?

[–] acockworkorange@mander.xyz 3 points 13 hours ago

Is that equatorial inertia or are you happy to see me?

[–] tomiant@piefed.social 8 points 1 day ago (1 children)

I fucking knew it. Everyone knows that the Earth is round, but I just knew that Jupiter was flat!

[–] baguette@piefed.social 6 points 1 day ago

Juno mission data suggests that Jupiter actually contains Matryoshka doll-style nested copies of every other planet in the Solar System.[^1]

[^1]: xkcd (2025), 'Jupiter Core', https://xkcd.com/3083/.