FLETCHER, Leigh N.; ANDRÉ, Nicolas; ANDREWS, David; BANNISTER, Michele; BUNCE, Emma; CAVALIÉ, T.; CHARNOZ, Sébastien; FERRI, Francesca; FORTNEY, Jonathan; GRASSI, Davide; GRITON, Léa; HARTOGH, Paul; HELLED, Ravit; HUESO, Ricardo; JONES, Geraint; KASPI, Yohai; LAMY, Laurent; MASTERS, Adam; MELIN, Henrik; MOSES, Julianne; MOUSIS, Olivier; NETTLEMAN, Nadine; PLAINAKI, Christina; ROUSSOS, Elias; SCHMIDT, Jürgen; SIMON, Amy; TOBIE, Gabriel; TORTORA, Paolo; TOSI, Federico; TURRINI, Diego

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FLETCHER, Leigh N.
Department of Atmospheric, Oceanic and Planetary Physics [Oxford] [AOPP]

ANDRÉ, Nicolas
Centre de Recherches en Oncologie biologique et Oncopharmacologie [CRO2]

ANDREWS, David

Langue

Document de travail - Pré-publication

Résumé en anglais

Uranus and Neptune, and their diverse satellite and ring systems, represent the least explored environments of our Solar System, and yet may provide the archetype for the most common outcome of planetary formation throughout our galaxy. Ice Giants are the last remaining class of planet in our system to have a dedicated orbital mission. This white paper describes how such a mission could explore their origins, ice-rich interiors, dynamic atmospheres, unique magnetospheres, and myriad icy satellites, to address questions at the very heart of modern planetary science. These two worlds are superb examples of how planets with shared origins can exhibit remarkably different evolutionary paths: Neptune as the archetype for Ice Giants, Uranus as the oddball. Exploring Uranus' natural satellites and Neptune's captured moon Triton could reveal how Ocean Worlds form and remain active, redefining the extent of the habitable zone in our Solar System. For these reasons and more, we propose that an Ice Giant System mission should become a strategic cornerstone spacecraft for ESA in the Voyage 2050 programme.< Réduire

Mots clés en anglais

Astrophysics - Instrumentation and Methods for Astrophysics

Astrophysics - Earth and Planetary Astrophysics

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Unités de recherche

Laboratoire d'Astrophysique de Bordeaux (LAB) - UMR 5804