Results 91 to 100 of about 15,445 (215)

Sustainable Water Systems in Space: A Review of Current Technologies and Future Prospects

open access: yesWater Resources Research, Volume 62, Issue 2, February 2026.
Abstract Sustainable water management is a critical challenge in space exploration, where the limited availability of resources requires innovative approaches to ensure astronauts' survival on long‐duration missions. This narrative review explores the key technologies and methods involved in water recycling, in situ resource utilization (ISRU), and ...
David Bamidele Olawade   +2 more
wiley   +1 more source

Early Time Small-scale Structures in Hot Exoplanet Atmosphere Simulations

open access: yesThe Astrophysical Journal
Abstract We report on the critical influence of small-scale flow structures (e.g., fronts, vortices, and waves) that immediately arise in hot exoplanet atmosphere simulations initialized with a resting state. A hot, 1:1 spin–orbit synchronized Jupiter is used here as a clear example; but, the phenomenon is generic and important for any ...
J. W. Skinner, J. Y-K. Cho
openaire   +3 more sources

Constraining Exoplanet Structure and Composition: Linking Theory & Observations

open access: yes, 2022
Since the discovery of first exoplanet by the end of the twentieth century, technological advancements have hugely extended our understanding of planetary systems. The large number of discovered exoplanets has unveiled a staggering diversity in their nature, leading to the surprising conclusion that our Solar System may not be a typical system.
openaire   +1 more source

Coupled Planetary Interior and Tidal Evolution

open access: yesThe Astrophysical Journal
We present a new planetary structure/thermal evolution model, designed for use in problems that couple orbital dynamics with planetary structure. We first benchmark our structural/thermal evolution calculations against the MESA stellar evolution code ...
Tim Hallatt, Sarah Millholland
doaj   +1 more source

Pulsating stars harbouring planets

open access: yes, 2011
Why bother with asteroseismology while studying exoplanets? There are several answers to this question. Asteroseismology and exoplanetary sciences have much in common and the synergy between the two opens up new aspects in both fields.
A. Moya   +36 more
core   +2 more sources

Observations of Exoplanet Atmospheres

open access: yes, 2015
Detailed characterization of an extrasolar planet's atmosphere provides the best hope for distinguishing the makeup of its outer layers, and the only hope for understanding the interplay between initial composition, chemistry, dynamics & circulation, and
Crossfield, Ian J. M.
core   +1 more source

Revealing Stellar Surface Structure Behind Transiting Exoplanets

open access: yes, 2018
During exoplanet transits, successive stellar surface portions become hidden and differential spectroscopy between various transit phases provide spectra of small surface segments temporarily hidden behind the planet. Line profile changes across the stellar disk offer diagnostics for hydrodynamic modeling, while exoplanet analyses require stellar ...
openaire   +1 more source

Terrestrial Exoplanet Internal Structure Constraints Enabled by Comprehensive Host Star Characterization Reveal That Terrestrial Planets in Mean Motion Resonances Are Water Rich

open access: yesThe Astrophysical Journal
Exoplanet mass and radius inferences fundamentally rely on host star mass and radius inferences. Despite the importance of host star mass, radius, and elemental abundance inferences for the derivation of exoplanet internal structure constraints ...
Alejandra Ross   +4 more
doaj   +1 more source

Observations of Mass Loss from the Transiting Exoplanet HD 209458b

open access: yes, 2010
Using the new Cosmic Origins Spectrograph (COS) on the {\it Hubble Space Telescope (HST)}, we obtained moderate-resolution, high signal/noise ultraviolet spectra of HD 209458 and its exoplanet HD 209458b during transit, both orbital quadratures, and ...
Ben-Jaffel   +28 more
core   +1 more source

Evolution of Steam Worlds: Energetic Aspects

open access: yesThe Astrophysical Journal
Sub-Neptunes occupy an intriguing region of planetary mass–radius space, where theoretical models of interior structure predict that they could be water-rich, where water is in steam and supercritical state.
Artyom Aguichine   +5 more
doaj   +1 more source

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