银河系中数十亿颗恒星之间的巨大空间不是空的，而是充满了稀薄的星际介质。中国科学家利用500米口径球面射电望远镜（FAST）或“中国天眼”揭示了银河系星际介质前所未有的细节。在中国国家天文台科学家韩金林的带领下，该研究小组于周六在最新期刊《科学中国：物理、力学与a》上发表了他们的新发现

The Eastern Theater Command of the Chinese People's Liberation Army (PLA) on Thursday conducted joint combat exercises and training around t

The Horn of Africa could face "unprecedented food unavailability problems" in 2023 due to ongoing drought and food supply shortages caused b