Copyright © ITmedia, Inc. All Rights Reserved.
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.
，推荐阅读91视频获取更多信息
日本“再军事化”和拥核企图已对地区安全稳定构成严重威胁。历史的教训告诫我们，对军国主义的绥靖就是对和平的背叛。维护和平的关键在于以行动阻击日本右翼的狂飙。中方依法出台管控措施，正是以实际行动防范两用物项流入日本扩军备武的链条，坚决遏阻军国主义死灰复燃。中方将同所有爱好和平的国家一道，坚决捍卫战后国际秩序，共同维护地区安全稳定。
Strings and allocations