Results 81 to 90 of about 15,081 (214)
Characterizing Exoplanet Habitability [PDF]
, 2017 A habitable exoplanet is a world that can maintain stable liquid water on its surface. Techniques and approaches to characterizing such worlds are essential, as performing a census of Earth-like planets that may or may not have life will inform our understanding of how frequently life originates and is sustained on worlds other than our own ...
openaire +3 more sources
Nitrates as a Potential N Supply for Microbial Ecosystems in a Hyperarid Mars Analog System
Life, 2019 Nitrate is common in Mars sediments owing to long-term atmospheric photolysis, oxidation, and potentially, impact shock heating. The Atacama Desert in Chile, which is the driest region on Earth and rich in nitrate deposits, is used as a Mars analog in ...
Jianxun Shen +3 more
doaj +1 more source
A Comprehensive Framework for Assessing Terrestrial Analogue Field Sites for Ocean Worlds
Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.Abstract Field studies at terrestrial analogue sites represent an important contribution to the science of ocean worlds. The value of the science and technology investigations conducted at field analogue sites depends on the relevance of the analogue environment to the target ocean world.
Jennifer C. Stern +35 more
wiley +1 more source
This review article delves into the study of low-mass exoplanets: super-Earths, mini-Neptunes and the new categories within and between that we are starting to discover. We provide an overview of current exoplanet observational capabilities, their limitations, and what they are allowing us to learn about low-mass planets.
Valencia, Diana +2 more
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Atmospheric Retrieval of Exoplanets [PDF]
, 2018 30 pages, 3 figures, Published in Springer Handbook of ...
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Microlensing Searches for Exoplanets [PDF]
Geosciences, 2018 Gravitational microlensing finds planets through their gravitational influence on the light coming from a more distant background star. The presence of the planet is then inferred from the tell-tale brightness variations of the background star during the lensing event, even if no light is detectable from the planet or the host foreground star.
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Classification of Planetary Motion around Super-Jupiters and Brown Dwarfs
UniverseWe investigate the orbital dynamics of an exosystem consisting of a solar-mass host star, a transiting body, and an Earth-size exoplanet within the framework of the generalized three-body problem.
Euaggelos E. Zotos +2 more
doaj +1 more source
EXONEST: The Bayesian Exoplanetary Explorer
Entropy, 2017 The fields of astronomy and astrophysics are currently engaged in an unprecedented era of discovery as recent missions have revealed thousands of exoplanets orbiting other stars.
Kevin H. Knuth +6 more
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A Quantitative Comparison of Exoplanet Catalogs
Geosciences, 2018 In this study, we investigated the differences between four commonly-used exoplanet catalogs (exoplanet.eu; exoplanetarchive.ipac.caltech.edu; openexoplanetcatalogue.com; exoplanets.org) using a Kolmogorov–Smirnov (KS) test.
Dolev Bashi, Ravit Helled, Shay Zucker
doaj +1 more source
Exoplanet Detection Techniques [PDF]
, 2014 We are still in the early days of exoplanet discovery. Astronomers are beginning to model the atmospheres and interiors of exoplanets and have developed a deeper understanding of processes of planet formation and evolution. However, we have yet to map out the full complexity of multi-planet architectures or to detect Earth analogues around nearby stars.
Fischer, Debra A. +6 more
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