Results 221 to 230 of about 172,809 (258)

Dynamic Habitability Of Extrasolar Planetary Systems

Celestial Mechanics and Dynamical Astronomy, 2005
In this paper, we estimate the likelihood to find habitable Earth-like planets on stable orbits for the extrasolar planetary systems ee Eridani, 55 Cancri, 47 Ursae Majoris, and ρ Coronae Borealis and provide a new tool to assess habitability of extrasolar planetary systems.
von Bloh, W., Bounama, C., Franck, S.
openaire   +2 more sources

Plasma for Crewed Transit and Planetary Habitation

2021 IEEE International Conference on Plasma Science (ICOPS), 2021
As human exploration moves beyond low Earth orbit, innovative life support and resource production systems become forerunners for human colonization. Plasma systems allow for complex chemical processes while mitigating consumable needs. Plasma technology and applications can redefine the space environment.
Anne J. Meier, Malay Shah, Gioia D. Massa, Mary E. Hummerick, K.W. Engeling, C. Franco, M.M. Tessema, David Rinderknecht, Elspeth M. Petersen, H.O. Boles, N. Azim, Joel Olson, R.P. Gott, C. Johnson, R.P. Pitts   +14 more
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Habitability of Enceladus: Planetary Conditions for Life

Origins of Life and Evolution of Biospheres, 2008
The prolific activity and presence of a plume on Saturn's tiny moon Enceladus offers us a unique opportunity to sample the interior composition of an icy satellite, and to look for interesting chemistry and possible signs of life. Based on studies of the potential habitability of Jupiter's moon Europa, icy satellite oceans can be habitable if they are ...
Joseph L. Kirschivnk, Yuk L. Yung, Mao-Chang Liang, Mao-Chang Liang, Mao-Chang Liang, Christopher D. Parkinson   +5 more
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Stellar-Planetary Relations: Atmospheric Stability as a Prerequisite for Planetary Habitability

Celestial Mechanics and Dynamical Astronomy, 2005
The region around a star where a life-supporting biosphere can evolve is the so-called Habitable Zone (HZ). The current definition of the HZ is based only on the mass-luminosity relation of the star and climatological and meteorological considerations of Earth-like planets, but neglects atmospheric loss processes due to the interaction with the stellar
Helmut Lammer, Helfried K. Biernat, Yu. N. Kulikov, Nikolai V. Erkaev, M. Leitner, Thomas Penz   +5 more
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Habitability and biogenic effects on planetary atmospheres

International Journal of Applied Science and Engineering Research, 2012
The physical characteristics of habitable planets have been critically examined considering the various properties of solar-system with special reference to Earth. The consequences of abiotic chemical evolution have been focused with an emphasis to the theories of life formation. Also roadmaps for the habitability of planets have been sketched for a re-
A. B. Bhattacharya, B. Raha
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The habitability of eccentric planetary orbits

2016
The huge number of exo-planets discovered so far show an unexpected diversity of planetary systems where most planets indicate eccentricity motion. Since Earth is still the only habitable planet we know and the planetary motion in our Solar system is nearly circular we study possible constraints of habitability in case of eccentric planetary motion ...
Pilat-Lohinger, Elke, Lammer, Helmut, Bancelin, David, Erkaev, Nikolai V., Bazsó, Á., Eggl, Siegfried   +5 more
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The Role of Planetary System Architecture in Planetary Habitability

2010
Traditionally, the habitable zone is defined as the region around a star in which liquid water can be stable on a planetary surface. At first these assessments considered planets on circular orbits. More recent investigations into nonzero orbital eccentricities found that the limits of the habitable zone should reflect the orbit-averaged flux a planet ...
Barnes, Rory, Jackson, B., Raymond, Sean N., Greenberg, R.   +3 more
openaire   +1 more source

Planetary habitability: is Earth commonplace in the Milky Way?

Naturwissenschaften, 2001
Is there life beyond planet Earth? This is one of the grand enigmas which humankind tries to solve through scientific research. Recent progress in astronomical measurement techniques has confirmed the existence of a multitude of extra-solar planets. On the other hand, enormous efforts are being made to assess the possibility of life on Mars.
Franck, S., Block, A., von Bloh, W., Bounama, C., Garrido, I., Schellnhuber, H.   +5 more
openaire   +4 more sources

The Role of Tides in Planetary Habitability

2011
Terrestrial planets in the classic "habitable zone" (Kasting et al. 1993) of stars may be influenced by tides. Tidal evolution is poorly constrained and multiple acceptable models exist which, although qualitatively similar, predict different rates of evolution.
Barnes, Rory, Heller, R., Jackson, B., Leconte, J., Greenberg, R., Mullins, K., Raymond, Sean N.   +6 more
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Out-of-equilibrium systems and planetary habitability

2014
The VI workshop of the “Thermodynamics, disequilibrium and evolution” Focus Group was held in the beautiful setting of Villa il Gioiello. This meeting focused on out-of- equilibrium systems, which could provide the conditions for the emergence of life, and on the use of thermodynamic instruments for the study of planetary habitability.
E. Simoncini, John Robert Brucato
openaire   +2 more sources