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Just 3.8 million years after the solar system’s first solids formed, Jupiter was still roughly twice its current radius and its surface magnetic field was about 50 times stronger — conclusions a 2025 Nature Astronomy study reconstructed partly from the slight orbital - Space Daily

Just 3.8 million years after the solar system’s first solids formed, Jupiter was still roughly twice its current radius and its surface magnetic field was about 50 times stronger — conclusions a 2025 Nature Astronomy study reconstructed partly from the slight orbital Space Daily