ByteDance, the parent company of TikTok, was granted a deadline until January to divest its U.S. operations or risk being banned, amid concerns from lawmakers about the security of American user data.

Elon Musk said he isn’t interested in buying TikTok, the popular social video app the US has tried to ban over national security concerns with its Chinese owner Bytedance Ltd. He made the comments—his ...

NASA has been monitoring a never-before-seen planet in its solar system, which is eight times the size of Earth.