天文学家们估计，WAPS - 17行星有可能和一颗较大的卫星又一次近距离接触，引力相互作用就好像弹弓，将WASP - 17放入奇怪的轨迹。
WASP-17 likely had a close encounter with a larger planet, and the gravitational interaction acted like a slingshot to put WASP-17 on its odd course, the astronomers figure.
天文学家们估计，WAPS - 17行星有可能和一颗较大的卫星又一次近距离接触，引力相互作用就好像弹弓，将WASP - 17放入奇怪的轨迹。
WASP-17 likely had a close encounter with a larger planet, and the gravitational interaction acted like a slingshot to put WASP-17 on its odd course, the astronomers figure.
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