Elon Musk, the world’s richest man who is now leading a sweeping effort to reshape the federal government, offered the most sustained defense of his far-reaching moves during a question-and-answer ...

Scientists led by Prof. Liu Jing from the Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences ...

The white nail theory is a trend going viral on social media apps like TikTok, but what exactly is it? Experts share ...