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A so-called "planetary nebula" is a confusing misnomer because these clouds have nothing to do with planets. As a medium-size star nears the end, it puffs out into a red giant — about 100 to 1,000 times its original size — eventually engulfing the space around it, including any nearby worlds.
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В Финляндии предупредили об опасном шаге ЕС против России09:28
刘年丰透露，现在看似很多具身智能公司进了场景，但真能把活干好的不多。“比如工厂里搬运料箱，光线一变、料箱外观、尺寸有所不同，机器人就认不出来，导致任务失败，”他说。