The Guide to Space is a series of space and astronomy poddcasts by Fraser Cain, publisher of Universe Today, Episode 700: Interview: Wallace Arthur and the Biological Universe. Twitch: Join our 836 patrons! And More…, Episode 691: Interview: Seth Shostak from the SETI Institute, Creative Commons Attribution 4.0 International License. In particular what they found is that some of the local ice would have melted, though most refroze in the later stages of the impact, some could have potentially absorbed enough salt to remain liquid even after the impact itself is over. We’re now learning that icy worlds seem to be the best places in Solar System where life could be hiding. Sorry ! Worlds like Europa and Enceladus, which have vast oceans of liquid water beneath a shell of water ice. [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 . 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. Beneath the crust, a subsurface ocean of liquid water up to 100 kilometers deep is thought to exist. That also means even in the absence of sunlight Europa has energy that could support simple life forms. Learn how your comment data is processed. (Printed And Shipped From The USA) View Coffee Mug Item Details., Astronomy Cast: [159] And More…, Episode 695: Q&A 130: Does the Dark Forest Explain the Fermi Paradox? And More…, Episode 697: Interview: Theoretical Physicist Dr. Peter Woit, Episode 696: Open Space 94: Is It Realistic to Declare a "Free Mars"? Sorry, your blog cannot share posts by email. RSS:, What Fraser's Watching Playlist: His newest book is called the Biological Universe, and features the search for life in the Milky Way and Beyond. Unfortunately, that means it is less likely that these geysers come from the sub-surface ocean, and therefore we are less likely to find biological signatures in them. Posted on November 26, 2020 November 26, 2020 by Andy Tomaswick Geysers on Europa might come from pockets of water under the ice Observations have already confirmed the … Europa is reckoned to be a potential cauldron for life because an ocean where life could evolve is believed to lurk beneath its icy surface. Chad Weber – [email protected], Support Universe Today podcasts with Fraser Cain. Ice-covered Europa follows an elliptical path in its 85 hour orbit around our ruling gas giant Jupiter. Europa: Discover Life Under the Ice Poster Illustration Credit: NASA, JPL, Visions of the Future. by James Urton, San Jose Mercury News . However, a new paper published in Geophysical Research Letters suggests a much more mundane source of the geysers – local liquid water buried in the moon’s thick ice shelf. Scientists ponder the possibilities. These include carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur, which are common elements, and scientists think it's likely they were present on Europa as it formed. And More…, Episode 698: Open Space 95: Would SpaceX Have Survived without NASA? This ice forms a "crust" on the moon that is thought to be several kilometers thick.–MdCSg, Support us at: Europa plays a role in the book and film of Arthur C. Clarke's 2010: Odyssey Two and its sequels. More stories at: 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? Investigators believe that the ocean is rich in dissolved ions, particularly magnesium, sodium, potassium, and chlorine. [159], Audio Podcast version: