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NOW 2023 Retreat

What, Where and When?

The NOW 2023 Retreat will be held at the USC Wrigley Center (Catalina Island, CA),  Aug 19-24, 2023

Rationale and Anticipated Outcomes: 

Build the community through interdisciplinary conversations among Earth and Planetary Scientists. 

Get together in person - to learn, discuss, grow the base of knowledge, and common grounds for communication between these two communities of scientists. 

Provide time for team building and potential proposal team development.

Create a forum for exchange with lectures delivered by “in house” expertise (e.g. from NOW St.Cttee) 

Gain familiarity with mission architectures for Earth Science Missions and Technologies and Ocean World Missions (Dragonfly, Clipper) and Mission Concepts (Uranus Orbiter & Probe, Enceladus OrbiLander, Europa Lander).

Identify commonalities is use of remote sensing approaches (spectroscopy, radar, magnetometry).

Advance our collective understanding on the state of knowledge for in situ and remotely sensed chemistry leading to interpretations of habitability and detecting signs of life on ocean worlds. 


The course modules will be designed to seed a new Field Guide to Ocean Worlds - a product of the short-course, and the Network for Ocean Worlds. Early career participants will be partnered with module leads to adapt lecture materials into a wiki-like entry in the field guide, providing an open access resource for NOW’s cross-disciplinary members and the scientific community alike. All contributions will be attributed on the field guide (both module leads and contributors), and potential for publishing the Field Guide may be explored with NASA.  

Meetings, Activities, and Workshops

Recent Ocean Worlds Research Publications

Buffo, J.J., et al. 2023. Geometry of Freezing Impacts Ice Composition: Implications for Icy Satellites, JGR Planets, Volume 128, Issue 3, e2022JE007389,

Castillo-Rogez, et al. 2023. Compositions and Interior Structures of the Large Moons of Uranus and Implications for Future Spacecraft Observations, Volume 128, Issue 1,

Howells et al., 2023. An examination of protist diversity in serpentinization-hosted ecosystems of the Samail Ophiolite of Oman. Front. Microbiol., 04 May 2023. Sec Microbiological Chemistry and Geomicrobiology. Volume 14-2023.

Pankine, A.A., 2023. Numerical simulations of heat exchange and vapor flow in ice fractures on Enceladus, Icarus, Volume 401, 2023, 115584, ISSN 0019-1035,

Randolph-Flagg, N.G., et al.2023. Phosphate availability and implications for life on ocean worlds. Nat Commun 14, 2388 (2023).

Averbuch, et al. 2023. Seismo-acoustic coupling in the deep atmosphere of Venus. The Journal of the Acoustical Society of America 153, 1802 (2023);

Farnsworth, et al. 2023. Floating Liquid Droplets on the Surface of Cryogenic Liquids: Implications for Titan Rain. ACS Earth Space Chem. 7, 2, 439–448.

Hofgartner, J.D., Hand, K.P. A continuum of icy satellites’ radar properties explained by the coherent backscatter effect. Nat Astron(2023).

Journaux, et al. 2023. On the identification of hyperhydrated sodium chloride hydrates, stable at icy moon conditions. Edited by Joanna Aizenberg, Harvard University, Cambridge, MA; received October 7, 2022; accepted January 20, 2023. 120 (9) e2217125120