Could we soon get better drugs and faster computers thanks to research and production in space? Some companies are betting big on the idea of working in zero gravity. Here's how you can benefit.

TikTok and its Chinese parent company ByteDance have filed a petition with a US court, seeking to block a law that forces them to sell the social media app to a non-Chinese buyer or face a ban. They argue the legislation is unconstitutional, setting the stage for a historic legal battle. But first, China's President Xi Jinping has arrived in Serbia on the second leg of his European tour. He expects to receive a much warmer welcome than he did in France.

President Joe Biden on Wednesday publicly warned Israel for the first time that the U.S. would stop supplying weapons if Israeli forces make a major invasion of Rafah, a refugee-packed city in southern Gaza.