而这种“消失”并非偶然，而是一场持续数年的缓慢退潮。
"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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Overall, I’m very sad at the state of agentic discourse but also very excited at its promise: it’s currently unclear which one is the stronger emotion.
The excavations will continue at the site in 2026
25 February 2026 16 min read