Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

这也让业内人士看到临近空间航空的商业化前景。《每日经济新闻》记者在现场采访了解到，尽管这款超音速飞机披露首飞计划是行业内的一大进展，但临近空间航空产业的商业化还有一段路要走。临近空间航空产业的商业化则受到政策环境等方面的挑战，比如涉及相应配套的 ...

Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...