Scientists say AI has crossed a critical 'red line' after demonstrating how two popular large language models could clone themselves.

For the second time, President Donald Trump has announced plans to pull the plug on U.S. support for the World Health Organization. The global health and humanitarian organization works to eradicate disease and track outbreaks, which often ignore international borders.

China has announced plans to build a giant solar power space station, which will be lifted into orbit piece by piece using the nation's brand-new heavy lift rockets.