The Sun is our nearest star and the energy released by nuclear reactions near its centre is transported by photons insid......

The Sun is our nearest star and the energy released by nuclear reactions near its centre is transported by photons insid......

光芒万丈的太阳并非如我们肉眼看上去那么毫无瑕疵，它的表面经常会有—些“小黑点”，那就是太阳黑子。从颜色上讲，太阳黑子其实并不是......

近期,新西兰冒险家、火山学家杰夫·麦克利等4人来到太平洋岛国——瓦努阿图共和国著名的马鲁姆火山岩浆湖边探险。他们冒险潜入澳......