Just over 50 years ago, paleontologist Donald Johnson unearthed the remains of "Lucy," an ancient human relative who lived more than 3 million years ago. Now, another group of scientists have found ...

Elon Musk streamed into the World Governments Summit in Dubai and weighed in his overhaul of U.S. government, his bid for OpenAI, the most important part of AI safety and more. CNN’s Anna Stewart and ...