Coal and utility-scale solar power each gained market share in the first half of this year, newly released data on U.S. electricity generation show. Natural gas, while still the market leader, lost ...

A powerful geomagnetic solar storm is helping to unveil northern lights across the United States. Here's how auroras become visible.

Israel Weapon Industries (IWI) has unveiled its new ‘Boost' energy system, which has been engineered to transform AR-15/M4 ...