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Jupiter's Formation Dated to 4.5 Billion Years Ago

8/26/2025

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Summary

Story summary

Researchers from Nagoya University and INAF dated Jupiter's formation to 4.5 billion years ago, 1.8 million years post-solar system formation.
Chondrules, formed from molten rock droplets during planetesimal collisions, were key to this dating.
The findings imply that similar processes may occur in other planetary systems, improving insights into planet formation.

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Story summary

Researchers from Nagoya University and INAF dated Jupiter's formation to 4.5 billion years ago, 1.8 million years post-solar system formation.
Chondrules, formed from molten rock droplets during planetesimal collisions, were key to this dating.
The findings imply that similar processes may occur in other planetary systems, improving insights into planet formation.