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19 小时
《自然》(20241121出版)一周论文导读
美国科学家探测到一颗迄今发现最年轻的凌星行星。凌星行星是从一颗恒星与地球这类观察者之间经过的行星。迄今,科学家已经在年龄在1000万到4000万年的恒星周围发现了超过十几颗凌星行星,但却一直未能探测到更年轻的凌星行星。这或许是因为这些行星还没有完全形成,或是因为人们对这类行星的视野被残余的原行星盘(新形成恒星周围的致密气体和尘埃环)遮挡了。
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