[159] And More…, Episode 697: Interview: Theoretical Physicist Dr. Peter Woit, Episode 696: Open Space 94: Is It Realistic to Declare a "Free Mars"? Investigators believe that the ocean is rich in dissolved ions, particularly magnesium, sodium, potassium, and chlorine. Which is one big reason why the geysers that occasionally shoot out of Europa’s ice sheet have garnered such interest. (Printed And Shipped From The USA) View Coffee Mug Item Details. And just in the last year, astrobiologists announced that hardy forms of Earth life should be able to thrive in these oceans, feeding off hydrogen gas emanating from deep sea vents.Clearly we need to explore these worlds, to go deep down beneath the ice to explore the ocean depths. Part of the team’s model demonstrates these isolated pocket’s ability to melt adjacent ice patches due to their increased salinity. Beneath the crust, a subsurface ocean of liquid water up to 100 kilometers deep is thought to exist. Europa: Discover Life Under the Ice Poster Illustration Credit: NASA, JPL, Visions of the Future. Highly-advanced aliens aiding the development of life take an interest in the primitive life forms under Europa's ice. It could then be sampled with a simple fly-by mission, such as Europa Clipper, rather than a submersible craft. And More…, Episode 691: Interview: Seth Shostak from the SETI Institute, Creative Commons Attribution 4.0 International License. Observations have already confirmed the existence of a sub-surface ocean on Europa, and there has been rampant speculation about whether they could contain life. https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G, Weekly email newsletter: And More…, Episode 694: Interview: Fred Watson, Australia's Astronomer at Large, Episode 693: Open Space 92: Why I Hate Embargoed News Stories, and More…, Episode 692: Open Space 91: Any Updates on Venus? Admittedly the work so far is modeling based on preliminary data from Galileo. These liquid patches can then travel around inside the ice sheet, and when they meet a particularly loose piece of the ice sheet covering Europa’s surface, could explode into the geysers the moon is so famous for. Not only could some of the water have potentially stayed liquid after the impact, it could also have started moving around in the ice sheet itself. Learn More:Stanford: Stanford researchers model source of eurption on Jupiter’s moon EuropaGeophysical Research Letters: Brine Migration and Impact-Induced Cryovolcanism on EuropaUT: Even More Evidence that Europa has GeysersLead Image Credit: Justice Blaine Wainwright. They transform Jupiter into a star to kick-start their evolution, and forbid humans from landing on or colonizing Europa. Ice-covered Europa follows an elliptical path in its 85 hour orbit around our ruling gas giant Jupiter. Like us on Facebook: https://www.facebook.com/universetoday [127] [158] Even if Europa lacks volcanic hydrothermal activity, a 2016 NASA study found that Earth-like levels of hydrogen and oxygen could be produced through processes related to serpentinization and ice-derived oxidants, which do not directly involve volcanism . Consider a visit to Europa, one of the Solar System's most tantalizing moons. Learn how your comment data is processed. https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/, Astronomy Cast: Going Under the Ice - YouTube Chad Weber – [email protected], Support Universe Today podcasts with Fraser Cain. His newest book is called the Biological Universe, and features the search for life in the Milky Way and Beyond. [127] [158] Even if Europa lacks volcanic hydrothermal activity, a 2016 NASA study found that Earth-like levels of hydrogen and oxygen could be produced through processes related to serpentinization and ice-derived oxidants, which do not directly involve volcanism . In the 1960s, ground-based telescope observations determined that Europa's surface composition is mostly water ice, as are most other solid bodies of the outer solar system. ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2