Results 51 to 60 of about 1,022 (196)
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
The K2 and TESS Synergy. II. Revisiting 26 Systems in the TESS Primary Mission
The Astronomical Journal, 2023 The legacy of NASA’s K2 mission has provided hundreds of transiting exoplanets that can be revisited by new and future facilities for further characterization, with a particular focus on studying the atmospheres of these systems. However, the majority of
Erica Thygesen +18 more
doaj +1 more source
From Tape Reels to Global Access: A History and Future Vision of NASA's Scientific Data Management
Earth and Space Science, Volume 12, Issue 9, September 2025.Abstract Since its creation in the late 1950s, NASA has collected space science data and information that span astrophysics, Earth science, planetary science, heliophysics, and biological and physical sciences. While these data were critical to NASA's objective of expanding human knowledge of space, the early days of scientific data and information ...
Kaylin Bugbee, Rahul Ramachandran
wiley +1 more source
Comparing Geochemical and Geodynamical Models of Plume and Ridge Mantle Source Composition
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 8, August 2025.Abstract We use a multidisciplinary approach to investigate how the parameter space of mantle convection affects present‐day mantle composition. We compare 22 forward geodynamical mantle circulation model simulations against 24 variants of a geochemical inversion model of the global radiogenic isotope data set of mantle‐derived lavas.
Paul Béguelin +6 more
wiley +1 more source
Advanced Photonics Research, Volume 6, Issue 7, July 2025.This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu +5 more
wiley +1 more source
Exoplanet Occurrence Rate with Age for FGK Stars in Kepler
The Astronomical JournalWe measure the exoplanet occurrence rate as a function of isochrone and gyrochronology ages using confirmed and candidate planets identified in Q1–17 DR25 Kepler data. We employ Kepler's pipeline detection efficiency to correct for the expected number of
Maryum Sayeed +6 more
doaj +1 more source
Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.Abstract We investigate the melt production of planetary impacts as a function of planet size (R/REarth $R/{R}_{\text{Earth}}$ = 0.1–1.5), impactor size (L $L$ = 1–1,000 km), and core size ratio (Rcore/R ${R}_{\text{core}}/R$ = 0.2–0.8) using a combination of parameterized convection models and fully dynamical 2D impact simulations.
Lukas Manske +6 more
wiley +1 more source
Friends Not Foes: Strong Correlation between Inner Super-Earths and Outer Gas Giants
The Astrophysical Journal LettersThe connection between outer gas giants and inner super-Earths reflects their formation and evolutionary histories. Past work exploring this link has suggested a tentative positive correlation between these two populations, but these studies have been ...
Marta L. Bryan, Eve J. Lee
doaj +1 more source
Ion Escape From Degenerate Induced Magnetospheres: The Case of Mars
Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.Abstract When the cone angle of the interplanetary magnetic field (IMF) becomes small, induced magnetospheres of unmagnetized planets degenerate. Using hybrid simulations, we study ionospheric ion escape in a 4° cone angle case and compare it with the nominal 55° cone angle (Parker spiral) case. The total escape rate is 1.7×1025 $1.7\times 1{0}^{25}$ s−
Qi Zhang +7 more
wiley +1 more source
The Astrophysical JournalMost multiplanet systems around mature (∼5 Gyr old) host stars are nonresonant. Even the near-resonant planet pairs still display 1%–2% positive deviation from perfect period commensurabilities (Δ) near first-order mean motion resonances (MMRs). Resonant
Yuancheng Xu, Fei Dai
doaj +1 more source