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Practice Speaking: Read Aloud
ID: #51923
Long Planet Nine
Astronomers think planets can exist in orbits far from their star, and propose two-step process: interactions with star or planets kick it out of the inner system, and then passing star stabilizes orbit to keep it bound. This scenario could explain hypothesized 'Planet Nine' in our solar system. Astronomers have confirmed that one binary star has planet in bound.
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