President Trump had a “firm” phone conversation with Denmark’s prime minister last week to convey his serious intentions of ...

Scientists used the most massive fundamental particles to break special relativity, but even that didn’t work.

联合北极司令部俯瞰格陵兰岛首府努克港，暴风雪吹打着总部上方的丹麦、格陵兰和法罗群岛旗帜。 这个小型军事前哨约有80名人员，负责丹麦对这个面积约210万平方公里的北极岛屿的安全保护。