The Martian subsurface as a potential window into the origin of life

JR Michalski, TC Onstott, SJ Mojzsis, J Mustard… - Nature …, 2018 - nature.com
Few traces of Earth's geologic record are preserved from the time of life's emergence, over
3,800 million years ago. Consequently, what little we understand about abiogenesis—the …

Enceladus: An active ice world in the Saturn system

JR Spencer, F Nimmo - Annual Review of Earth and Planetary …, 2013 - annualreviews.org
Enceladus, one of the mid-sized icy moons of Saturn, has an importance to planetary
science far greater than its modest 504-km diameter would suggest. Intensive exploration of …

The Enceladus Orbilander mission concept: Balancing return and resources in the search for life

SM MacKenzie, M Neveu, AF Davila… - The Planetary …, 2021 - iopscience.iop.org
Enceladus's long-lived plume of ice grains and water vapor makes accessing oceanic
material readily achievable from orbit (around Saturn or Enceladus) and from the moon's …

Enceladus's measured physical libration requires a global subsurface ocean

PC Thomas, R Tajeddine, MS Tiscareno, JA Burns… - Icarus, 2016 - Elsevier
Several planetary satellites apparently have subsurface seas that are of great interest for,
among other reasons, their possible habitability. The geologically diverse saturnian satellite …

The gravity field and interior structure of Enceladus

L Iess, DJ Stevenson, M Parisi, D Hemingway… - Science, 2014 - science.org
The small and active Saturnian moon Enceladus is one of the primary targets of the Cassini
mission. We determined the quadrupole gravity field of Enceladus and its hemispherical …

The science case for a return to Enceladus

ML Cable, C Porco, CR Glein… - The planetary …, 2021 - iopscience.iop.org
The plume of Enceladus is unique in the solar system in providing direct access to fresh
material from an extraterrestrial subsurface ocean. The Cassini Mission, though not …

Detection of intact amino acids with a hypervelocity ice grain impact mass spectrometer

SE Burke, ZA Auvil, KA Hanold… - Proceedings of the …, 2023 - National Acad Sciences
Astrobiology studies are a top priority in answering one of the most fundamental questions in
planetary science: Is there life beyond Earth? Saturn's icy moon Enceladus is a prime target …

Science objectives for flagship-class mission concepts for the search for evidence of life at enceladus

SM MacKenzie, M Neveu, AF Davila, JI Lunine… - Astrobiology, 2022 - liebertpub.com
Cassini revealed that Saturn's Moon Enceladus hosts a subsurface ocean that meets the
accepted criteria for habitability with bio-essential elements and compounds, liquid water …

The geochemistry of Enceladus: Composition and controls

CR Glein, F Postberg, SD Vance - … and the icy moons of Saturn, 2018 - books.google.com
Enceladus is the first world beyond Earth for which we have diagnostic observational data
concerning the composition of an extant ocean. The abundances of chemical species in the …

The case for an ocean-bearing Mimas from tidal heating analysis

AR Rhoden, ME Walker - Icarus, 2022 - Elsevier
Cassini measurements of Mimas' physical libration can be explained by either a non-
hydrostatic core or a global, liquid water ocean beneath a 24–31 km thick ice shell. An …