When is heavy water (i.e., that formed with deuterium instead of simple hydrogen) formed in the universe? Very early into protoplanetary system formation, it seems!

«Our detection indisputably demonstrates that the water seen in this planet-forming disk must be older than the central star and formed at the earliest stages of star and planet formation,” shares Margot Leemker, lead author on this paper, and a postdoc with the Department of Physics, University of Milan, Italy. “This presents a major breakthrough in understanding the journey of water through planet formation, and how this water made its way to our Solar System, and possibly Earth, through similar processes.”»

https://www.almaobservatory.org/en/press-releases/first-ever-detection-of-heavy-water-in-a-planet-forming-disk/

#ALMA #AtacamaLargeMillimeterSubmillimeterArray #AtacamaLargeMillimeterArray #PlanetFormation #PlanetSystemFormation #GalacticWater #GalacticHeavyWater #HeavyWater #D2O

#MITPress Releases Direct to Open Impact Report

👉 Data show that #openaccess #monographs receive significantly more use and #citations than their non-open counterparts and are more successful at reaching audiences beyond the academy.

https://mitpress.mit.edu/open-access-at-mit-press/d2o-impact-report-2024/

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MIT Press Direct to Open books downloaded more than 176,312 times in ten months https://mitpress.mit.edu/blog/mit-press-direct-to-open-books-downloaded-more-than-176312-in-ten-months/

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