Alexis Bouquet

TL;DR: The Ion Neutral Mass Spectrometer onboard the Cassini spacecraft is used to detect molecular hydrogen in the plume of escaping material on Enceladus, finding that the most plausible source of this hydrogen is ongoing hydrothermal reactions of rock containing reduced minerals and organic materials.

TL;DR: Amateur contributions to professional publications have increased exponentially over the last decades in the field of planetary astronomy as discussed by the authors, and amateur contributions to the monitoring of planets and interplanetary matter, characterization of asteroids and comets, as well as the determination of the physical properties of Kuiper Belt Objects and exoplanets are discussed.

TL;DR: In this paper, the main scientific goals to be addressed by the future in situ exploration of Saturn placing the Galileo probe exploration of Jupiter in a broader context and before the future Pluto exploration of the more remote ice giants.

TL;DR: In this paper, the authors used a statistical thermodynamic model to assess which species detected in the plumes by the Cassini-Ion and Neutral Mass Spectrometer experiment are trapped in clathrates and found that the conditions for clathrate formation are met in this ocean, except above 20km or in hypothetical hot spots.

TL;DR: Thermodynamic equilibrium calculations show that methane-rich clathrate layers may exist on Pluto as well, and their presence is invoked in the satellite's subsurface as a means of replenishing its atmosphere with methane via outgassing episodes.