A mysterious metal shard captured the imagination of the American public, because it was supposedly from a 1947 UFO that crashed on Earth. The sample seemed to have an unprecedented material structure ...

We were overwhelmed by the response to our annual Letters to Santa feature, with more than 1,250 letters submitted this year. Due ...

我们吃的东西正在发生改变，新鲜、天然的食物正在被便宜、高度加工的三餐所取代。这种改变增加了人们患上多种慢性疾病的风险，包括肥胖和抑郁症。国际专家认为，我们需要采取行动减少全世界饮食中的超加工食品，因为这些食品对我们的健康构成了威胁。