K. L. Mitchell
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View article: Leveraging Ceres to Gain Insights into the Candidate Ocean Worlds of Umbriel and Oberon That Orbit Uranus
Leveraging Ceres to Gain Insights into the Candidate Ocean Worlds of Umbriel and Oberon That Orbit Uranus Open
Ceres, located in the asteroid belt, exhibits intriguing parallels with two of the large Uranian satellites: Umbriel and Oberon. These similarities include size, bulk compositions, and dominantly radiogenic internal heat sources. We identi…
View article: Leveraging Ceres to Gain Insights into the Candidate Ocean Worlds of Umbriel and Oberon that Orbit Uranus
Leveraging Ceres to Gain Insights into the Candidate Ocean Worlds of Umbriel and Oberon that Orbit Uranus Open
Introduction: Ceres is the only inner Solar System dwarf planet (2.77 AU, 940-km-diameter). There are intriguing parallels between Ceres and two of the large Uranian satellites, located at 19.19 AU: Umbriel (1,169-km-diameter) and Oberon (…
View article: Partnering with Patients and the Public in the Clinical Trials Ecosystem: A Decade of Lessons Learned and Shared
Partnering with Patients and the Public in the Clinical Trials Ecosystem: A Decade of Lessons Learned and Shared Open
Background: In the health research space, it is becoming more common to see patient and public partners as members of teams and contributing to various initiatives, rather than solely as participants in research. We use the term patient an…
View article: A Proposed Model for Cryovolcanic Activity on Enceladus Driven by Volatile Exsolution
A Proposed Model for Cryovolcanic Activity on Enceladus Driven by Volatile Exsolution Open
There is considerable interest in sending a mission to Enceladus to sample its erupting materials, which are sourced from its ocean, a proposed habitable environment. However, we lack resolution between competing ascent and eruption models…
View article: A Proposed Model for Cryovolcanic Activity on Enceladus Driven by Volatile Exsolution
A Proposed Model for Cryovolcanic Activity on Enceladus Driven by Volatile Exsolution Open
• Recent studies for the ascent and eruption of Enceladus' plume have neglected the role of exsolution and expansion of dissolved volatiles. • Volatile-driven direct ocean-to-jet liquid water ascent is generally consistent with observation…
View article: Feasibility of Passive Sounding of Uranian Moons Using Uranian Kilometric Radiation
Feasibility of Passive Sounding of Uranian Moons Using Uranian Kilometric Radiation Open
We present a feasibility study for passive sounding of Uranian icy moons using Uranian Kilometric Radio (UKR) emissions in the 100–900 kHz band. We provide a summary description of the observation geometry, the UKR characteristics, and est…
View article: A Proposed Model for Cryovolcanic Activity on Enceladus Driven by Volatile Exsolution
A Proposed Model for Cryovolcanic Activity on Enceladus Driven by Volatile Exsolution Open
There is considerable interest in sending a mission to Enceladus to sample its erupting materials, which are transported either directly or indirectly from its ocean, a likely habitable environment. However, we lack clear resolution betwee…
View article: Feasibility of Passive Sounding of Uranian Moons using Uranian Kilometric Radiation
Feasibility of Passive Sounding of Uranian Moons using Uranian Kilometric Radiation Open
We present a feasibility study for passive sounding of Uranian icy moons using Uranian Kilometric Radio (UKR) emissions in the 100 - 900 kHz band. We provide a summary description of the observation geometry, the UKR characteristics, and e…
View article: A Reevaluation of Cryolava Flow Evolution: Assumptions, Physical Properties, and Conceptualization
A Reevaluation of Cryolava Flow Evolution: Assumptions, Physical Properties, and Conceptualization Open
Cryovolcanism has been invoked to explain numerous features observed on icy bodies. Many of these features show similar morphologies to volcanic features observed on Earth suggesting similar physics involved in their formation. Cryovolcani…
View article: Planetary Caves: A Solar System View of Processes and Products
Planetary Caves: A Solar System View of Processes and Products Open
We provide the first solar system wide compendium of speleogenic processes and products. An examination of 15 solar system bodies revealed that six cave‐forming processes occur beyond Earth including volcanic (cryo and magmatic), fracturin…
View article: Supporting Information for: Planetary Caves: A Solar System View of Processes and Products
Supporting Information for: Planetary Caves: A Solar System View of Processes and Products Open
This dataset consists of four files, which are structured as two MS Word documents. Each document serves as a readme file for a companion MS Excel spreadsheet. The first file pair is a Word document, "Supplemental_Info_LitReview_TextS1_Wyn…
View article: Single‐ and Multi‐Pass Magnetometric Subsurface Ocean Detection and Characterization in Icy Worlds Using Principal Component Analysis (PCA): Application to Triton
Single‐ and Multi‐Pass Magnetometric Subsurface Ocean Detection and Characterization in Icy Worlds Using Principal Component Analysis (PCA): Application to Triton Open
Many moons in the solar system are thought to potentially harbor hidden oceans based on the features observed at their surfaces. However, the magnetic induction signatures measured in the vicinity of these moons provide the most compelling…
View article: Tiger: Concept Study for a New Frontiers Enceladus Habitability Mission
Tiger: Concept Study for a New Frontiers Enceladus Habitability Mission Open
Data returned from the Cassini–Huygens mission have strengthened Enceladus, a small icy moon of Saturn, as an important target in the search for life in our solar system. Information gathered from Cassini to support this includes the prese…
View article: Triton: Fascinating Moon, Likely Ocean World, Compelling Destination!
Triton: Fascinating Moon, Likely Ocean World, Compelling Destination! Open
Triton is an important signpost in understanding the diverse populations of both ocean worlds and Kuiper Belt objects (KBOs). As a likely ocean world, it is unique by virtue of its kidnapped history from the Kuiper Belt: its large orbital …
View article: The Earthlike Shoreline Morphology of Titan's Ontario Lacus
The Earthlike Shoreline Morphology of Titan's Ontario Lacus Open
Ontario Lacus' shoreline features include Earth-like rivers, deltas and flooded topography. Ontario is a dynamic lake, similar in many ways to terrestrial lakes, with active shoreline processes.
View article: Are Titan's Lakes Liquid-filled?
Are Titan's Lakes Liquid-filled? Open
SAR imagery obtained during Cassini's T16 Titan fly-by revealed numerous radar-dark features at > ~70° N, interpreted to be lakes [1] on the basis of their low radar reflectivity, morphology and consistency with predictions [2]. Later fly-…
View article: Mars Astrobiological Cave and Internal habitability Explorer (MACIE): A New Frontiers Mission Concept
Mars Astrobiological Cave and Internal habitability Explorer (MACIE): A New Frontiers Mission Concept Open
Martian subsurface habitability and astrobiology can be evaluated via a lava tube cave, without drilling. MACIE addresses two key goals of the Decadal Survey (2013-2022) and three MEPAG goals. New advances in robotic architectures, autonom…
View article: Triton: Fascinating Moon, Likely Ocean World, Compelling Destination!
Triton: Fascinating Moon, Likely Ocean World, Compelling Destination! Open
Why Explore Triton?Neptune's moon Triton has been explored by just one spacecraft, Voyager 2, in 1989.Images revealed a unique geologically young surface with landforms found nowhere else in the solar system [1].Geysers erupt from a surfac…
View article: Mars Astrobiological Cave and Internal habitability Explorer (MACIE): A New Frontiers Mission Concept
Mars Astrobiological Cave and Internal habitability Explorer (MACIE): A New Frontiers Mission Concept Open
Martian subsurface habitability and astrobiology
View article: Trident: A Mission to Explore Triton, a Candidate Ocean World
Trident: A Mission to Explore Triton, a Candidate Ocean World Open
Triton: Scientific MotivationNeptune’s moon Triton is one of the most interesting and surprising targets observed by Voyager. During its distant flyby in 1989, Voyager 2 captured a series of images, mostly of the southern, sub-Neptun…
View article: TRIDENT Radio Science Objectives and Expected Performance
TRIDENT Radio Science Objectives and Expected Performance Open
Introduction and BackgroundTrident is a mission concept to investigate Neptune’s large moon Triton, an exotic candidate ocean world at 30 AU (Prockter et al., 2019, Mitchell et al. 2019). The concept is responsive to recommendations …
View article: PERISCOPE: PERIapsis Subsurface Cave OPtical Explorer
PERISCOPE: PERIapsis Subsurface Cave OPtical Explorer Open
In this NIAC report we present a new technique enabling a practical option for mapping these structures at a relatively low cost: Photon Time-of-Flight (PTOF) imaging. Consider a scene with a surface that is in a camera's line of sight, wi…
View article: Topographic Constraints on the Evolution and Connectivity of Titan's Lacustrine Basins
Topographic Constraints on the Evolution and Connectivity of Titan's Lacustrine Basins Open
The topography provided by altimetry, synthetic aperture radar‐topography, and stereo radargrammetry has opened new doors for Titan research by allowing for quantitative analysis of morphologic form. Using altimetry measurements, we show t…
View article: Cryovolcanic Features on Titan
Cryovolcanic Features on Titan Open
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