path tracing

The US Energy Information Administration's educational resource traces the history of photovoltaic technology through a detailed timeline, from early solar cell discoveries to modern solar power adoption. The page is part of the agency's history of energy series aimed at students and curious readers, and is drawing fresh attention as interest in solar energy and its long development path continues to grow.

Kenneth Walker III of the Kansas City Chiefs has emerged as the NFL's leading rusher, and a new data-driven analysis traces his unlikely route to the top of the league's rankings. The piece points to his standout ability to break tackles as a defining feature of his production, examining the statistics behind his breakout start to the season.