"The nebula appears to have distinct regions that capture different phases of its evolution — an outer shell of gas that was blown off first and consists mostly of hydrogen, and an inner cloud with more structure that contains a mix of different gases," NASA's blog post reads. The dark line that runs vertically through the nebula, giving it the cranial appearance, could be the result of "an outburst or outflow from the central star, which typically occurs as twin jets burst out in opposite directions." Both Webb's Near-Infrared Camera (NIRCam) and its Mid-Infrared Instrument (MIRI) were used to document the nebula.
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事实已经证明了这一点。春节期间，因为新机价格普遍上涨，把不少消费者推向了那些芯片稍老一代、但内存配置同样不低的老产品。一位手机专卖店老板指着柜台里的样机表示，“现在不少年轻人进来就问，有没有前两年的旗舰款”。