Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one young star should help us understand how such systems form
Več na: https://www.newscientist.com/article/2510539-super-low-density-worlds-reveal-how-common-planetary-systems-form/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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