Summary:
- This article discusses the discovery of ancient "heavy water" in the disk surrounding a distant star, which may provide insights into the origins of Earth's oceans.
- Heavy water, also known as deuterium oxide, is a rare form of water that contains deuterium, a heavier isotope of hydrogen, instead of regular hydrogen.
- The presence of this ancient heavy water in the disk around the distant star suggests that the same process that formed Earth's oceans may have occurred in other planetary systems, providing clues about the universal mechanisms behind the formation of water-bearing planets.