科学家发现地球的内在核心 可能正在改变形状, 挑战了以前关于地球坚固性的概念。 Scientists discover Earth's inner core may be changing shape, challenging previous notions of its solidity.

科学家发现,地球的内核曾经被认为是一个坚固的、不变的球体,但实际上可能正在改变形状。 Scientists have found that Earth's inner core, once believed to be a solid, unchanging sphere, may actually be changing shape. 通过分析地震的地震波 研究人员发现了证据 内核的外部边界在过去几十年里 已经转移了 By analyzing seismic waves from earthquakes, researchers discovered evidence that the inner core's outer boundary has shifted over the past few decades. 这表明内核可能不如先前想象的那么坚固,可能以与地球其他部分不同的速度旋转。 This suggests that the inner core might be less solid than previously thought, potentially rotating at a different pace than the rest of the planet. 这些变化可能是由于与液体外核的相互作用造成的,并且可以提供对地球磁场和热行为的洞察力。 The changes could be due to interactions with the liquid outer core, and could provide insights into Earth's magnetic field and thermal behavior.