Ancient water in protoplanetary disk is older than its star
Astronomers have discovered ancient water in the planet-forming disk surrounding a young star. This water, known as heavy water, actually formed in molecular clouds long before the star itself came into existence.
The finding provides valuable insights into the early stages of star and planet formation, showing that some of the water present in planetary systems predates the stars they orbit.
This discovery was first reported on EarthSky under the title “Ancient water in protoplanetary disk is older than its star.”
https://earthsky.org/space/ancient-water-in-protoplanetary-disk-older-than-star/
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