Our solar system’s rocky planets – Mercury, Venus, Earth and Mars – may have formed from two rings around the young sun, rather than a single disc
Več na: https://www.newscientist.com/article/2520503-earth-may-have-formed-from-two-separate-rings-around-the-sun/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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