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Tides and the Evolution of Planetary Habitability [PDF]

open access: green, 2008
Tides raised on a planet by its host star's gravity can reduce a planet's orbital semi-major axis and eccentricity. This effect is only relevant for planets orbiting very close to their host stars.
Brian Jackson   +7 more
core   +2 more sources

History and Habitability of the LP 890-9 Planetary System [PDF]

open access: goldThe Planetary Science Journal
We present numerous aspects of the evolution of the LP 890-9 (SPECULOOS-2/TOI-4306) planetary system, focusing on the likelihood that planet c can support life. We find that the host star reaches the main sequence in 1 Gyr and that planet c lies close to
Rory Barnes   +44 more
doaj   +3 more sources

Tidal Constraints on Planetary Habitability

open access: green, 2009
We review how tides may impact the habitability of terrestrial-like planets. If such planets form around low-mass stars, then planets in the circumstellar habitable zone will be close enough to their host stars to experience strong tidal forces.
Barnes, Rory   +4 more
core   +4 more sources

Streaks on martian slopes are dry [PDF]

open access: yesNature Communications
Slope streaks are dark albedo features on martian slopes that form spontaneously and fade over years to decades. Along with seasonally recurring slope lineae, streak formation has been attributed to aqueous processes, implying the presence of transient ...
Valentin Tertius Bickel   +1 more
doaj   +2 more sources

Eccentricity Distribution beyond the Snow Line and Implications for Planetary Habitability [PDF]

open access: goldThe Astrophysical Journal Letters
A fundamental question in the study of planetary system demographics is: how common is the solar system architecture? The primary importance of this question lies in the potential of planetary systems to create habitable environments, and dissecting the ...
Stephen R. Kane, Robert A. Wittenmyer
doaj   +2 more sources

Anomalous transient enhancement of planetary ion escape at Mars [PDF]

open access: yesNature Communications
Atmospheric ion escape plays a crucial role in the evolution of planetary climate and habitability. While Mars has been the focus of extensive in-situ spacecraft observations, our understanding of ion escape at Mars has been constrained by single-point ...
Chi Zhang   +19 more
doaj   +2 more sources

Multiverse Predictions for Habitability: Planetary Characteristics

open access: yesUniverse, 2022
Recent detections of potentially habitable exoplanets around sunlike stars demand increased exploration of the physical conditions that can sustain life, by whatever methods available.
McCullen Sandora   +3 more
doaj   +1 more source

Quantifying the Key Factors Affecting the Escape of Planetary Atmospheres

open access: yesThe Astrophysical Journal, 2023
The habitability of Earth-like planets is an increasingly important subject in astrophysics and in planetary sciences. Atmospheric escape plays a vital role in the evolution of the habitability of Earth-like planets.
J. Luo, H.-Q. He, G.-S. Tong, Jiao Li
doaj   +1 more source

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