The best AI chatbots of 2026: I tested ChatGPT, Copilot, and others to find the top tools around

I pushed eight free AI chatbots to their limits to find the best AI chatbots of 2026. To explore our top picks, check out ZDNET's chatbot-by-chatbot guide.
Daily Mail

Trump tells European leaders they'd all be 'speaking German' without US - as he repeats Greenland demands, but says he WON'T use force

Donald Trump has told Europe they would all be speaking German 'and a little Japanese' without the US as he doubled down on his demands for Greenland but ruled out using force. Speaking at the World ...
IEEE

Array Element Phase Pattern Consistency Measurement Without Phase Center Alignment Using Multielement Measurement Data and Element Positions

Abstract: Phase response consistency is an important parameter for antenna arrays. In general, phase center alignment with the geometric center of the rotating platform is necessary for antenna phase ...