光明日报记者齐芳基于我国大科学装置郭守敬望远镜和欧洲航天局研制升空的盖亚空间望远镜，天文学家构建了世界上第一个亿星级消光数据库并发布了首幅覆盖全天的银河系三维尘埃消光特性图，首次实现了银河系三维尘埃分布与消光曲线的同步测绘。

U.S. President Donald Trump posted a link on Truth Social that displayed a symbol Nazis used to identify gay men in ...

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