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1. About how long ago did the solar system form (as nothing more than a cloud of gas and dust)?

2 Answers

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Earth began to form over 4.6 billion years ago from the same cloud of gas (mostly hydrogen and helium) and interstellar dust that formed our sun, the rest of the solar system and even our galaxy
User Onivi
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I believe the figure is 4.6 billion years ago when the gas and dust were disturbed
User Alla
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