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NASA's Juno Reveals Jupiter's New Dimensions and Insights

2/15/2026

Summary

Story summary

Jupiter's equatorial radius is 71,488 kilometers (44,421 miles), making it 4 kilometers narrower and 12 kilometers flatter at the poles.
The adjustments come from NASA's Juno mission data, providing accurate radio occultation measurements.
Scientists Eli Galanti and Maria Smirnova of the Weizmann Institute say these changes refine Jupiter's interior models and understanding of gas giants in other planetary systems.
The findings were published in Nature Astronomy.

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Story summary

Jupiter's equatorial radius is 71,488 kilometers (44,421 miles), making it 4 kilometers narrower and 12 kilometers flatter at the poles.
The adjustments come from NASA's Juno mission data, providing accurate radio occultation measurements.
Scientists Eli Galanti and Maria Smirnova of the Weizmann Institute say these changes refine Jupiter's interior models and understanding of gas giants in other planetary systems.
The findings were published in Nature Astronomy.