R. M. C. Lopes

Potential Cryovolcanic Regions on Ganymede: A Priority Target for JUICE

Anezina Solomonidou, Christos Ntinos, Katrin Stephan, F. Tosi et autres

Abstract One of the Jupiter Icy Moons Explorer (JUICE) mission goals of the European Space Agency, launched in 2023 April, is the detailed characterization of Ganymede, Jupiter’s largest moon and a confirmed ocean world. Among its science objectives, JUICE will investigate Ganymede’s …

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Lava Lakes on Io: Crust Age and Implications for Thermal Output

Alessandro Mura, R. M. C. Lopes, Federico Tosi, Peter J. Mouginis-Mark et autres

Abstract Recent observations by the JIRAM instrument on board NASA’s Juno spacecraft have confirmed that many of Io’s volcanic hotspots are active lava lakes, characterized by a colder central crust surrounded by a hotter peripheral ring. In this study, we investigate the …

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Terrestrial Analogs to Titan for Geophysical Research

Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles S. Cockell et autres

Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an …

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Lava Lakes on Io: crust age and implications for thermal output

Alessandro Mura, R. M. C. Lopes, Federico Tosi, Peter J. Mouginis-Mark et autres

Recent observations by the JIRAM instrument onboard NASA's Juno mission have confirmed that many of Io's volcanic hot spots are active lava lakes, characterized by a colder central crust surrounded by a hotter peripheral ring. In this study, we investigate the thermal …

Terrestrial Analogs to Titan for Geophysical Research

Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell et autres

Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas - methane - replacing the Earth's water, …

Terrestrial Analogs to Titan for Geophysical Research

Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell et autres

Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas - methane - replacing the Earth's water, …

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“Salt Tectonics” on Titan: Radial Labyrinths as Topographic Expressions of Solid‐State Flow

Ashley Schoenfeld, S. D. Vance, R. M. C. Lopes, M. Malaska et autres

Abstract Surface observations of Saturn's moon Titan revealed features characterized as dissected, elevated plateaus with high valley density known as labyrinth terrains. Of this terrain class, a subtype referred to as radial labyrinth is described as dome‐shaped uplifts with radial channel patterns. …

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Thermal Characteristics of Active Lava Flows on Io Observed by the JIRAM Instrument on Juno

R. M. C. Lopes, A. Mura, Peter J. Mouginis-Mark, J. Radebaugh et autres

Abstract We use data from the Jovian InfraRed Auroral Mapper (JIRAM) instrument on the Juno spacecraft, acquired during close fly‐bys of Jupiter's moon Io during 2022–2024, to identify new characteristics of active lava flows and changes since observations from previous missions (Voyager, …

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Foreword

P. K. Byrne, R. M. C. Lopes, M.A. Siegler

Volcanic satellites tidally venting Na, K, and SO2 in optical and infrared light

A. Oza, Andrea Gebek, Moritz Meyer zu Westram, Armen Tokadjian et autres

ABSTRACT Recent infrared spectroscopy from the James Webb Space Telescope (JWST) has spurred analyses of common volcanic gases such as carbon dioxide (CO$_2$), sulphur dioxide (SO$_2$), alongside alkali metals sodium (Na i) and potassium (K i) surrounding the hot Saturn WASP-39 b. …

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Volcanic Satellites Tidally Venting Na, K, SO2 in Optical & Infrared Light

A. Oza, Andrea Gebek, Moritz Meyer zu Westram, Armen Tokadjian et autres

Recent infrared spectroscopy from the James Webb Space Telescope (JWST) has spurred analyses of common volcanic gases such as carbon dioxide (CO2), sulfur dioxide (SO2), alongside alkali metals sodium (Na I) and potassium (K I) surrounding the hot Saturn WASP-39 b. We …

JunoCam Observations of Io

M. A. Ravine, C. J. Hansen, M. A. Caplinger, Paul Michael Schenk et autres

Abstract During multiple Juno encounters with Io in 2023 and 2024, the spacecraft's imaging system, JunoCam, acquired approximately one hundred images of Io. These images have a range of scales down to 1 km per pixel, and covered more than half of …

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