The eight planets of our solar system orbit in the same direction along what's called the ecliptic, a flat plane that's nearly aligned with the sun's equator.
太阳系中的八大行星都沿着同一方向在被叫作黄道面(这一平面与太阳赤道面形成微小的夹角)运行。
Researchers have long debated how close in gas giant planets form from a flat disk of primordial gas and dust.
有关气态巨型行星形成于原始气体和尘埃平盘内的什么位置问题，长期以来研究人员一直在争论。
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