NGC 4567 and NGC 4568 (nicknamed the Siamese Twins or the Butterfly Galaxies) are a set of spiral galaxies about 60 million light-years away in the ...
主管研究與技術的美國陸軍副助理部長米勒(Mary J. Miller),在接受眾議院軍事委員會新興威脅和能力小組委員會(Subcommittee on Emerging Threats and Capabilities)質詢「指向性能量武器」(directed-energy weapon, DEW)開發進度時表示,相關...