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How did the Sun and planets form?
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Nobody knows for sure. Most scientists think that the Sun, Earth and other planets (the Solar System) were formed from a mass of dust and gas. Nearly 5,000 million years ago, this mass started to shrink, and then spin and flatten into a disk. The centre of the disk spun fastest. This became the Sun. The rest of the material turned into the planets. | | Like other stars, the Sun is a vast ball of gas with no solid surface. |
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Previous:
Back
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Book:
Best Ever Q&A
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Section:
Space
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Chapter:
Mysterious Universe
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