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Nasa news saturn12/30/2023 ![]() ![]() Further geochemical modeling by the team demonstrated that an abundance of phosphate may also be possible in other icy ocean worlds in the outer solar system, particularly those that formed from primordial ice containing carbon dioxide, and where liquid water has easy access to rocks. By doing this, they discovered high concentrations of sodium phosphates – molecules of chemically bound sodium, oxygen, hydrogen, and phosphorus – inside some of those grains.Ĭo-authors in Europe and Japan then carried out laboratory experiments to show that Enceladus’ ocean has phosphorus, bound inside different water-soluble forms of phosphate, in concentrations of at least 100 times that of our planet’s oceans. Many more ice particles were analyzed when Cassini flew through the E ring than when it went through just the plume, so the scientists were able to examine a much larger number of compositional signals there. The authors focused on data collected by Cassini’s Cosmic Dust Analyzer instrument when it sampled icy particles from Enceladus in Saturn’s E ring. The archive is actively managed by planetary scientists to help ensure its usefulness and usability by the worldwide planetary science community. ![]() ![]() Enceladus and Beyondįor this latest study, the authors accessed the data through NASA’s Planetary Data System, a long-term archive of digital data products returned from the agency’s planetary missions. Previous analysis of Enceladus’ ice grains revealed concentrations of sodium, potassium, chlorine, and carbonate-containing compounds, and computer modeling suggested the subsurface ocean is of moderate alkalinity – all factors that favor habitable conditions. ![]()
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