The field of materials science has witnessed a remarkable breakthrough at the University of Hong Kong, where Professor Mingxin Huang and his team developed SS-H2, a stainless steel with exceptional corrosion resistance for hydrogen production. The discovery's unique property of sequential dual-passivation mechanism challenges conventional limitations and could significantly reduce structural material costs in green hydrogen technology. In energy research, unexplained discoveries, such as a nuclear battery lasting 7,000 years and a new catalyst for cleaner hydrogen engines, highlight the unpredictability of scientific advancements. The role of serendipity in these breakthroughs emphasizes open-mindedness, rigorous validation, and collaboration across disciplines. The journey from discovery to potential industrial application of SS-H2 underscores the significance of persistence and patience in unraveling mysteries. Looking ahead, unexplained scientific phenomena like SS-H2 offer promise for new research directions, technological innovations, and interdisciplinary collaborations, shaping the future of energy and scientific understanding.