Израиль нанес удар по Ирану09:28
В Финляндии предупредили об опасном шаге ЕС против России09:28。关于这个话题，91视频提供了深入分析
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When the star eventually releases its outer layers, it shrivels down to its core in what's known as a white dwarf star. At that point, it'll be about the size of Earth.