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What if the solar system passed through a cloud of gas and dust that was beginning to collapse to form a new star and planet system? What might happen to Earth, and how would the passage affect the appearance of the sky? In your answers, be sure to cite specific evidence for your speculations, referring to what you know about the conditions inside proto-planetary nebulae.What if the solar system passed through a cloud of gas and dust that was beginning to collapse to form a new star and planet system? What might happen to Earth, and how would the passage affect the appearance of the sky? In your answers, be sure to cite specific evidence for your speculations, referring to what you know about the conditions inside proto-planetary nebulae