P0171 is a diagnostic trouble code that means the engine’s air-to-fuel mixture on Bank 1 is too lean, with too much air ...

Military planners spent years treating high-energy lasers as a science project. In 2025, that changed, as directed-energy systems moved from test ranges into real air defense networks and forced ...

Farran Powell is the managing editor of investing at Forbes Advisor. She was previously the assistant managing editor of investing at U.S. News & World Report. Her work has appeared in numerous ...