Scientists from Stockholm University have discovered a previously hidden 'critical point' in supercooled water that does not freeze. This discovery was obtained through rapid heating and X-raying before the liquid-liquid transition occurred. The discovery advances our understanding of how water behaves at a fundamental level and has implications for almost all aspects of life on Earth. The researchers believe the critical point is around the -63 °C and 1000-atmosphere mark, which will help with further investigations.