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Are There Terrestrial Planets Lurking in the Outer Solar System?

open access: yesThe Astrophysical Journal Letters, 2023
Motivated by recent measurements of the free-floating-planet mass function at terrestrial masses, we consider the possibility that the solar system may have captured a terrestrial planet early in its history.
Amir Siraj
doaj   +1 more source

Transport Characteristics of the Electrification and Lightning of the Gas Mixture Representing the Atmospheres of the Solar System Planets

open access: yesAtmosphere, 2021
Electrification represents a fundamental process in planetary atmospheres, widespread in the Solar System. The atmospheres of the terrestrial planets (Venus, Earth, and Mars) range from thin to thick are rich in heavier gases and gaseous compounds, such ...
Marija Radmilović-Radjenović   +2 more
doaj   +1 more source

Surrounded by Giants: Habitable Zone Stability Within the HD 141399 System

open access: yesThe Astronomical Journal, 2023
The search for exoplanets has revealed a diversity of planetary system architectures, the vast majority of which diverge significantly from the template of the solar system.
Stephen R. Kane
doaj   +1 more source

Observations of Locally Generated Whistler-mode Waves in the Martian Magnetotail Current Sheet

open access: yesThe Astrophysical Journal, 2023
The whistler-mode wave is an electromagnetic wave that commonly occurs in space plasma and has been extensively studied, especially within the Earth's magnetosphere. They have also been reported in the near-Mars space, such as Martian upstream solar wind,
Xiao Ma   +6 more
doaj   +1 more source

Terrestrial planet and asteroid belt formation by Jupiter–Saturn chaotic excitation

open access: yesScientific Reports, 2023
The terrestrial planets formed by accretion of asteroid-like objects within the inner solar system’s protoplanetary disk. Previous works have found that forming a small-mass Mars requires the disk to contain little mass beyond ~ 1.5 au (i.e., the disk ...
Patryk Sofia Lykawka, Takashi Ito
doaj   +1 more source

The Dynamical Consequences of a Super-Earth in the Solar System

open access: yesThe Planetary Science Journal, 2023
Placing the architecture of the solar system within the broader context of planetary architectures is one of the primary topics of interest within planetary science. Exoplanet discoveries have revealed a large range of system architectures, many of which
Stephen R. Kane
doaj   +1 more source

Mercury’s Hidden Past: Revealing a Volatile-dominated Layer through Glacier-like Features and Chaotic Terrains

open access: yesThe Planetary Science Journal, 2023
The discovery of global elemental volatile compositions, sublimation hollows, and chaotic terrains has significantly reshaped our understanding of Mercury’s geology.
J. Alexis P. Rodriguez   +11 more
doaj   +1 more source

Outgassing Composition of the Murchison Meteorite: Implications for Volatile Depletion of Planetesimals and Interior-atmosphere Connections for Terrestrial Exoplanets

open access: yesThe Planetary Science Journal, 2023
Outgassing is a central process during the formation and evolution of terrestrial planets and their atmospheres both within and beyond the solar system.
Maggie A. Thompson   +7 more
doaj   +1 more source

Terrestrial planet compositions controlled by accretion disk magnetic field

open access: yesProgress in Earth and Planetary Science, 2021
Terrestrial planets (Mercury, Venus, Earth, and Mars) are differentiated into three layers: a metallic core, a silicate shell (mantle and crust), and a volatile envelope of gases, ices, and, for the Earth, liquid water.
William F. McDonough, Takashi Yoshizaki
doaj   +1 more source

Overview of electric solar wind sail applications; pp. 267–278 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2014
We analyse the potential of the electric solar wind sail for solar system space missions. The applications studied include flyby missions to terrestrial planets (Venus, Mars and Phobos, Mercury) and asteroids, missions based on non-Keplerian orbits ...
Pekka Janhunen   +8 more
doaj   +1 more source

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