Stress can turn hair gray -- and its reversible, researchers find 研究人员发现-压力可以导致头发变白-头发变白后还可以发生逆转 Legend has it that Marie Antoinettes hair turned gray overnight just before her beheadi

The mysterious origin of the northern lights has been proven 北极光的神秘来源已经被证实 The aurora borealis, or northern lights, could easily be described as Earths greatest light show. A phenomenon thats exclusiv...

Mars helicopter achieves fastest, furthest flight yet 火星直升飞机的飞行速度和飞行距离达到前所未有的新高度 The Ingenuity helicopter has successfully flown for the third time on Mars in a week. This time, the helico

WHOs new naming system for coronavirus variants uses Greek alphabet 世界卫生组织采用希腊字母为新冠病毒变体命名 The World Health Organization said on Monday that it has assigned new labels to key coronavirus variants so

How to write a letter of resignation如何写辞职信Writing a letter of resignation can be difficult, depending on the circumstances. For one thing, its hard to strike just the right tone. Even if youre leaving...

Plastics pose threat to human health, report shows 据报道，塑料会对人类健康造成威胁 Plastics contain and leach hazardous chemicals, including endocrine-disrupting chemicals (EDCs) that threaten human health. An autho...