Vast ‘doughnut’ discovered in molten metal of Earth’s core
Earth with its magnetosphere, which is critical to the survival of life on the planet. Scientists have discovered a ring-like region in its outer core.
2024-08-30 437词 简单
A study co-author and Australian National University geophysicist, Prof Hrvoje Tkalčić, said because scientists could not reach the core with current technology, the team had analysed the forms of seismic waves generated by large earthquakes as they travelled through it.
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