"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.
Russell Brandom
Dataworks 的架构设计与实践，详情可参考旺商聊官方下载
Data centres to be expanded across UK as concerns mount。业内人士推荐heLLoword翻译官方下载作为进阶阅读
Credit: The Pokémon Company
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