Age: 4.57 billion years
From looking at infant planets in other systems, we know that worlds form at the same time as their stars. Both the Sun and
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Age: 4.57 billion years
From looking at infant planets in other systems, we know that worlds form at the same time as their stars. Both the Sun and
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Astronomy for Beginners: Ideal guide for beginners on astronomy, the Universe, planets and cosmology
byWilliam James