Results 241 to 250 of about 187,880 (287)
Some of the next articles are maybe not open access.
Factors of Planetary Habitability
, 2013This chapter discusses factors necessary for life originating and developing on a planet somewhere else in the universe than on Earth. Of course, I am not the first to do this: ever since people became interested in the origin of life, ideas have been put forward, though generally only a few, often independent, factors are taken into account.
R. Hengeveld
semanticscholar +2 more sources
Pioneering Concepts of Planetary Habitability
, 2013Famous astronomers such as Richard A. Proctor (1837–1888), Jules Janssen (1824–1907), and Camille Flammarion (1842–1925) studied the concept of planetary habitability a century before this concept was updated in the context of the recent discoveries of exoplanets and the development of planetary exploration in the solar system.
F. Cerceau
semanticscholar +2 more sources
Research Notes of the AAS, 2020
E. W. Maunder’s popular book “Are the Planets Inhabited?” has a strikingly modern perspective on the question, and may be the first use in this context of the phrase “habitable zone.”
R. Lorenz
semanticscholar +1 more source
E. W. Maunder’s popular book “Are the Planets Inhabited?” has a strikingly modern perspective on the question, and may be the first use in this context of the phrase “habitable zone.”
R. Lorenz
semanticscholar +1 more source
Habitability of Enceladus: Planetary Conditions for Life
Origins of Life and Evolution of Biospheres, 2008The 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 ...
Parkinson, Christopher D. +3 more
openaire +3 more sources
Dynamic Habitability Of Extrasolar Planetary Systems
Celestial Mechanics and Dynamical Astronomy, 2005In 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 +1 more source
Planetary Magnetic Fields: Planetary Interiors and Habitability
2016Soon after its detection, radio emission from Jupiter was quickly identified as a product of its planetary-scale magnetic field. Subsequent spacecraft investigations have revealed that many of the planets—and even some moons—either currently have or have had in the past a planetaryscale magnetic field.
Lazio, Joseph +2 more
openaire +1 more source
6. Planetary climate and habitability
2021‘Planetary climate and habitability’ studies planetary climate, particularly the way an atmosphere affects temperature and a planet's habitability. The entire temperature profile, from the planet's centre to the tenuous outer reaches of its atmosphere (if it has one), is of importance.
openaire +1 more source
Stellar-Planetary Relations: Atmospheric Stability as a Prerequisite for Planetary Habitability
Celestial Mechanics and Dynamical Astronomy, 2005The 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
H. Lammer +5 more
openaire +1 more source
The Role of Planetary System Architecture in Planetary Habitability
2010Traditionally, 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 +3 more
openaire +1 more source
Habitability and biogenic effects on planetary atmospheres
International Journal of Applied Science and Engineering Research, 2012The 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-
Bhattacharya A.B, Raha B
openaire +1 more source