Results 71 to 80 of about 4,672 (105)

Hydrogen Bonds and Life in the Universe. [PDF]

open access: yesLife (Basel), 2018
Vladilo G, Hassanali A.
europepmc   +1 more source

Spectral fingerprints of Earth-like planets around FGK stars. [PDF]

open access: yesAstrobiology, 2013
Rugheimer S   +4 more
europepmc   +1 more source

Possible ecosystems and the search for life on Europa. [PDF]

open access: yesProc Natl Acad Sci U S A, 2001
Chyba C, Phillips C.
europepmc   +1 more source

Planetary geodynamics and age constraints on circumstellar habitable zones around main sequence stars

open access: closedInternational Journal of Astrobiology, 2023
AbstractPlanetary geodynamics may have an important influence over planetary habitability and the boundaries of the circumstellar habitable zone (CHZ) in space and time. To investigate this we use a minimal parameterized model of the co-evolution of the geosphere and atmosphere of Earth-like planets around F, G, K and M main sequence stars.
Fernando de Sousa Mello   +1 more
semanticscholar   +3 more sources

Circumstellar habitable zones: an overview

open access: closedActa Astronautica, 1998
Abstract We review aspects of circumstellar habitable zones based on results reported at the First International Conference on Circumstellar Habitable Zones (held in 1994 at NASA Ames Research Center). Recent advances in atmospheric radiative transfer modeling have shown that circumstellar habitable zones are wider than previously thought.
John Billingham   +2 more
openaire   +3 more sources

On a Broader Concept of Circumstellar Habitable Zones

open access: closedInternational Astronomical Union Colloquium, 1997
AbstractWe suggest the possibility of a broader circumstellar habitable zone than considered so far. The factors taken into account – in addition to greenhouse effect – are tidal heating, and the role of ammonia (A) as a possible solvent instead of water (W) for biogenic materials.
B. Lukács   +3 more
openaire   +3 more sources

Circumstellar Habitable Zones in Tight Binary Star Systems

open access: closed, 2013
The fact that up to 70% of all stellar systems in our Galaxy may not be single-stellar but multi-stellar systems and the growing number of detected planets in binary star systems require methods for a quick assessment of possible habitability of a terrestrial planet in binary star systems.
Pilat-Lohinger, Elke   +2 more
openaire   +3 more sources

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