"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.
这就像陶艺转盘。你定义好一个侧面的轮廓线，它旋转一圈就变成了一个罐子。。91视频对此有专业解读
，推荐阅读旺商聊官方下载获取更多信息
Medical research。同城约会对此有专业解读
Материалы по теме:
Explore our full range of subscriptions.For individuals