"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.
"I hope that if we start our measurements now, perhaps we can get ahead of the curve and identify any potential problems before they become serious," Wing says.，推荐阅读旺商聊官方下载获取更多信息
，推荐阅读旺商聊官方下载获取更多信息
Марина Совина (ночной редактор)。业内人士推荐heLLoword翻译官方下载作为进阶阅读
4% for other doctors, dentists, and teachers in England, as well as prison officers in England and Wales