Results 31 to 40 of about 7,212 (309)
Formation of ammonia–helium compounds at high pressure
Nature Communications, 2020 Helium is generally considered too inert to be present in giant ice planet mantles. The authors, by first-principles calculations and crystal structure searches, find stable ammonia–helium compounds at the conditions of Uranus and Neptune’s upper mantles,
Jingming Shi +5 more
doaj +1 more source
Interior and Evolution of the Giant Planets
Remote Sensing, 2023 The giant planets were the first to form and hold the key to unveiling the solar system’s formation history in their interiors and atmospheres.
Yamila Miguel, Allona Vazan
doaj +1 more source
Rings Beyond the Giant Planets [PDF]
, 2018 Until 2013, only the giant planets were known to host ring systems. In June 2013, a stellar occulation revealed the presence of narrow and dense rings around Chariklo, a small Centaur object that orbits between Saturn and Uranus. Meanwhile, the Cassini spacecraft revealed evidence for the possible past presence of rings around the Saturnian satellites ...
Sicardy, Bruno +5 more
openaire +3 more sources
Radiation‐Resistant Aluminum Alloy for Space Missions in the Extreme Environment of the Solar System
Advanced Materials, EarlyView.A novel ultrafine‐grained aluminum crossover alloy exhibits unprecedented radiation resistance and mechanical stability under extreme irradiation doses up to 100 dpa. The exceptional resilience arises from thermodynamically stable T‐phase precipitates, enabling lightweight structural materials for next‐generation spacecraft and extraterrestrial ...
Patrick D. Willenshofer +9 more
wiley +1 more source
The Planetary Science Journal, 2023 The tumultuous early era of outer solar system evolution culminated when Neptune migrated across the primordial Kuiper Belt (PKB) and triggered a dynamical instability among the giant planets.
William F. Bottke +8 more
doaj +1 more source
The Fuzziness of Giant Planets’ Cores [PDF]
The Astrophysical Journal Letters, 2017 Abstract Giant planets are thought to have cores in their deep interiors, and the division into a heavy-element core and hydrogen–helium envelope is applied in both formation and structure models. We show that the primordial internal structure depends on the planetary growth rate, in particular, the ratio of heavy elements accretion to ...
Helled, Ravit, Stevenson, David
openaire +4 more sources
Advanced Materials, EarlyView.The tear‐and‐stack method enables the creation of twisted SrTiO3 bilayers with accurate twist‐angle control, which yield atomically sharp oxide moiré superlattices with emergent exotic topological polar vortices, thereby opening a new pathway for twistronics based on 2D‐like non‐van der Waals oxides.
Yingli Zhang +13 more
wiley +1 more source
Geophysical Monograph Series, Page 263-304., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside +3 more
wiley +4 more sources
The Astronomical JournalWe present statistical results from the Epoch of Giant Planet Migration RV planet search program. This survey was designed to measure the occurrence rate of giant planets interior to the water ice line of young Sun-like stars, compare this to the ...
Quang H. Tran +10 more
doaj +1 more source
Models of the in situ formation of detected extrasolar giant planets [PDF]
, 2021 Peter Bodenheimer +2 more
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