For nearly two decades, the corrosion of negatively polarized platinum electrodes in water electrolyzers has puzzled scientists. However, researchers at SLAC National Accelerator Laboratory and Leiden University have made a breakthrough by identifying platinum hydrides as the culprit behind the rapid breakdown. Despite platinum's reputation for durability and stability, it degrades when used as an electrode in an electrolyte like saltwater. By utilizing high-energy-resolution X-ray spectroscopy techniques, the team observed platinum corrosion in real-time and confirmed that platinum hydride is the key factor. The development of a 'flow cell' allowed them to analyze subtle changes in the electrode and understand the corrosion process better. These findings have significant implications for the future of hydrogen production, as addressing platinum electrode corrosion can lead to more cost-effective and reliable electrolyzers. The research also underscores the importance of collaborative efforts in advancing scientific knowledge and solving complex issues. Overall, this study marks a crucial step towards achieving sustainable hydrogen energy production and enhancing the performance of electrochemical devices.