"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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"It meant it was possible to capture a nearly 180 degree field of view, so you could almost capture them like a string of pearls in the sky."。业内人士推荐51吃瓜作为进阶阅读
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每月領薪日,他第一件事就是到便利商店繳費。「那是一大筆費用,但這就是規矩,不付錢就沒有工作機會。工作到現在,我才剛還完信用貸款,根本還沒開始賺錢。」