Results 21 to 30 of about 35,629 (285)

Circumbinary Habitable Zones in the Presence of a Giant Planet

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Determining habitable zones in binary star systems can be a challenging task due to the combination of perturbed planetary orbits and varying stellar irradiation conditions.
Nikolaos Georgakarakos   +8 more
doaj   +1 more source

Palaeoecology of the Hiraiso Formation (Miyagi Prefecture, Japan) and implications for the recovery following the end-Permian mass extinction [PDF]

open access: yesPeerJ, 2022
The Hiraiso Formation of northeast Japan represents an important and under-explored archive of Early Triassic marine ecosystems. Here, we present a palaeoecological analysis of its benthic faunas in order to explore the temporal and spatial variations of
William J. Foster   +6 more
doaj   +2 more sources

Conceptualising quality early childhood education: Learning from young children in Brazil and South Africa through creative and play‐based methods

open access: yesBritish Educational Research Journal, EarlyView., 2023
Abstract Early childhood has increasingly been acknowledged as a vital time for all children. Inclusive and quality education is part of the United Nations Sustainable Development Goals, with the further specification that all children have access to quality pre‐primary education.
Laura H. V. Wright   +8 more
wiley   +1 more source

Neocatastrophism and the milky way astrobiological landscape [PDF]

open access: yesSerbian Astronomical Journal, 2008
The number and distribution of habitable planets in the Milky Way is one of the foremost problems of contemporary astrobiological research. We investigate the effects of applying general neocatastrophic paradigm to the evolution of the Galactic Habitable
Vukotić B., Ćirković M.M.
doaj   +3 more sources

No Transits of Proxima Centauri Planets in High-Cadence TESS Data

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Proxima Centauri is our nearest stellar neighbor and one of the most well-studied stars in the sky. In 2016, a planetary companion was detected through radial velocity measurements.
Emily A. Gilbert   +9 more
doaj   +1 more source

Inner Habitable Zone Boundary for Eccentric Exoplanets

open access: yesThe Astrophysical Journal Letters, 2023
The climate of a planet can be strongly affected by its eccentricity due to variations in the stellar flux. There are two limits for the dependence of the inner habitable zone boundary (IHZ) on eccentricity: (1) the mean stellar flux approximation ( ${S ...
Xuan Ji   +5 more
doaj   +1 more source

KRITERIA PLANET LAYAK HUNI SEBAGAI ANALISIS KEBERADAAN DOPPELGANGER BUMI

open access: yesGravity: Jurnal Ilmiah Penelitian dan Pembelajaran Fisika, 2019
The discovery of extrasolar planets has reached rapid development. Until now, various earth-sized planets called terrestrial planets around their parent stars have been discovered .
Berthianna Nurcresia   +4 more
doaj   +1 more source

Kepler Mission Fact Sheet [PDF]

open access: yes, 2007
This 2-page color fact sheet briefly describes NASA’s Kepler mission, its instruments, and ground system. Also included are tables listing the instrument parameters and the major institutions involved.

core   +1 more source

Extrasolar Trojan planets close to habitable zones [PDF]

open access: yesAstronomy & Astrophysics, 2004
4 pages, 4 figures, submitted to A& ...
Dvorak, Rudolf   +3 more
openaire   +2 more sources

Radiative habitable zones in martian polar environments [PDF]

open access: yesIcarus, 2005
The biologically damaging solar ultraviolet (UV) radiation (quantified by the DNA-weighted dose) reaches the Martian surface in extremely high levels. Searching for potentially habitable UV-protected environments on Mars, we considered the polar ice caps that consist of a seasonally varying CO2 ice cover and a permanent H2O ice layer. It was found that,
Córdoba-Jabonero, Carmen   +4 more
openaire   +4 more sources

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