Beyond the cloud's unusual shape, scientists see the nebula as a freeze-frame in the life of a star facing its final act. Elderly stars shed their outer layers in bursts, creating shells of gas and dust that expand. By observing the nebula at different wavelengths, researchers can sort out what material was molted first, how fast the star is losing mass, and which phase of decline Webb has caught.
Nature, Published online: 26 February 2026; doi:10.1038/d41586-026-00542-8，详情可参考搜狗输入法2026
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2月26日，携程发布2025全年财报，同时宣布一系列董事变动，自2026年2月25日起生效。联合创始人范敏辞任董事兼总裁职务，季琦辞任董事职务。董事会表示，对两位在公司创立与发展过程中作出的重要贡献表示感谢。同时，公司任命吴亦泓、萧杨为新任独立董事，李基培加入董事会薪酬委员会。公告称，此举旨在进一步完善董事会结构，增强专业多元背景与战略监督能力。。夫子对此有专业解读
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