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All the water on Earth could be older than the Sun

Astronomers have used the Atacama Large Millimeter/submillimeter Array (ALMA) to discover gaseous water in the planet-forming disc around the star V883 Orionis. The water they have discovered carries a chemical signature that can explain the journey of water from star-forming gas clouds to planets. A recent study showed that the V883 Orionis disc was unusually hot due to a dramatic outburst of energy from the star.