The article discusses the growing interest in hydrogen as a fuel alternative for heavy-duty vehicles, highlighting its environmental benefits such as zero carbon emissions when produced using renewable energy. Unlike battery-powered electric vehicles, hydrogen-powered vehicles offer the advantage of not overburdening the electricity grid. However, the article points out a limitation faced by hydrogen-fuel-cell-powered vehicles - the relatively short lifespan due to the degradation of fuel cell components over time. This issue is addressed by researchers at Chalmers University of Technology through a new method that allows for the detailed study of fuel cell aging. By tracking a specific particle in the fuel cell during use and observing degradation at the nano and micro level, valuable insights are gained for the development of improved fuel cells with longer lifespans. The research's significance is underlined by the U.S. Department of Energy, which identifies enhancing fuel cell longevity as crucial for the commercial success of hydrogen-powered vehicles. The new experimental method developed by Chalmers University offers a foundation for studying degradation processes within fuel cells and enables the future development of materials that can extend fuel cell lifespans. This pioneering work signifies a significant step towards the advancement of fuel cell technology and the realization of more durable and efficient fuel cell vehicles in the market.