Iceland has no shortage of natural dangers – volcanic eruptions, glacial floods, scaldingly hot springs and bitterly cold winters. But it is at least one of the few places on Earth where humans don't ...

These are not scenes from a sci-fi movie, but real-life "tech tourism" experiences unfolding at scenic spots across China. The continuous evolution of technologies like artificial intelligence (AI) ...

Study measures urban light pollution with satellite 一项研究用卫星测量城市光污染源 Episode 201130 / 30 Nov 2020 What are the main sources of light pollution in this city seen in space?

2026年11月13日，著名的旅行者1号探测器将成为有史以来第一个距离地球整整“一光日”（即光在一天内能行进的距离）的人工航天器。空间广大，速度有限。人类所创造的最快飞行纪录是1969年阿波罗10号创造的时速39937.7公里，而以这样的速度，从地球 ...