Journal
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Volume 378, Issue 2187, Pages -Publisher
ROYAL SOC
DOI: 10.1098/rsta.2019.0474
Keywords
giant planets; solar system; planetary interiors; planet evolution; Uranus; Neptune
Categories
Funding
- SNSF [200020_188460]
- NASA [NNX16AI43G]
- NSF-AAG [1908615]
- NASA [903208, NNX16AI43G] Funding Source: Federal RePORTER
- Direct For Mathematical & Physical Scien [1908615] Funding Source: National Science Foundation
- Division Of Astronomical Sciences [1908615] Funding Source: National Science Foundation
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Uranus and Neptune form a distinct class of planets in our Solar System. Given this fact, and ubiquity of similar-mass planets in other planetary systems, it is essential to understand their interior structure and composition. However, there are more open questions regarding these planets than answers. In this review, we concentrate on the things we do not know about the interiors of Uranus and Neptune with a focus on why the planets may be different, rather than the same. We next summarize the knowledge about the planets' internal structure and evolution. Finally, we identify the topics that should be investigated further on the theoretical front as well as required observations from space missions. This article is part of a discussion meeting issue 'Future exploration of ice giant systems'.
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