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.
Maddie MolloyClimate & science reporter
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Фото: Slawomir Kaminski / Agencja Wyborcza.pl / Reuters。业内人士推荐旺商聊官方下载作为进阶阅读
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最终，Anthropic 主要依赖两家书商批量供货：