Results 61 to 70 of about 5,906 (233)

Jupiter's X‐ray Aurorae. A High Signal Spectral Analysis of the 0.24–1.40 keV Energy Range

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract Jupiter's X‐ray auroras are predominantly produced by precipitating energetic heavy ions. Recent results suggest a connection between the pulsation rate of these ion aurorae and the pulsation rate of magnetospheric waves. Using remote X‐ray observations and results from in situ measurements from the Juno Jupiter Energetic particle Detector ...
B. Parry, W.R. Dunn, A.D. Wibisono, A. Foster, J.A. Carter, N. Achilleos, G. Clark   +6 more
wiley   +1 more source

Evidence for a Nonzero Eccentricity Superpuff Exoplanet WASP-107 b Using JWST Occultation Observation

The Astrophysical Journal Letters
WASP-107 b is an extremely low-density superpuff exoplanet whose inflated radius and evidence of strong internal heating make it a key target for understanding planetary structure and evolution.
Yunke Wu, Zixin Zhang, Xinyue Ma, Zhangliang Chen, Wenqin Wang, Shangfei Liu, Cong Yu, Dichang Chen, Bo Ma   +8 more
doaj   +1 more source

Seizing opportunities and navigating the challenges of spaceflight research as an early career researcher

Experimental Physiology, EarlyView.
Colleen S. Deane
wiley   +1 more source

A Long‐Term Study of Jupiter's Equatorial Winds at the Top of the Troposphere

Journal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract Jupiter's equatorial atmosphere is covered by dense hazes that extend from the main cloud level to the lower stratosphere. These hazes are variable in optical depth and brightness, although the causes of these variations are unknown. James Webb Space Telescope (JWST) observations of the equatorial hazes in 2022 in near‐infrared wavelengths ...
M. Sánchez‐Arregui, A. Antuñano, R. Hueso, A. Sánchez‐Lavega   +3 more
wiley   +1 more source

Climate Emergency and Different Ways to Fail? The Fermi Paradox, the Simulation Hypothesis, Agency and Hope

Journal for the Theory of Social Behaviour, Volume 55, Issue 4, December 2025.
ABSTRACT Humanity seems stuck on different ways to fail to meet the challenge posed by a declared climate emergency and manifest problems of ecological breakdown. Rather than reprise these failures, we use the Fermi Paradox and simulation hypothesis to make a simple point about agency. The argument unfolds in two sections.
Jamie Morgan
wiley   +1 more source

AT2025ulz and S250818k: Zooming in with the Hubble Space Telescope

The Astrophysical Journal Letters
AT2025ulz is an optical/near-infrared transient discovered during follow-up of the candidate gravitational wave (GW) event S250818k. Its young age (≲1 day), rapid decline, and strong color evolution over the first 48 hr classify it as a potential ...
Yu-Han Yang, Eleonora Troja, Marko Ristić, Muskan Yadav, Massine El Kabir, Rubén Sánchez-Ramírez, Rosa L. Becerra, Chris L. Fryer, Brendan O’Connor, Simone Dichiara, Alberto J. Castro-Tirado, Camila Angulo-Valdez, Josefa Becerra González, José A. Font, Ori Fox, Lei Hu, Youdong Hu, William H. Lee, Margarita Pereyra, Alicia M. Sintes, Alan M. Watson, K. Océlotl C. López Mendoza   +21 more
doaj   +1 more source

Probing Jupiter's Atmosphere Through Juno Radio Occultations: Analysis of the Atmospheric Thermal Structure

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract The upper layers of Jupiter's atmosphere, offering critical insights into the planet's deeper structure, are accessible through radio occultation experiments. Since July 2023, NASA's Juno extended mission has provided the first high‐resolution radio occultation measurements since the Voyager era, probing the thermal structure and composition ...
Maria Smirnova, Eli Galanti, Andrea Caruso, Leigh N. Fletcher, Dustin R. Buccino, Luis Gomez Casajus, William B. Hubbard, Glenn S. Orton, Marzia Parisi, Ryan S. Park, Marco Zannoni, Paul G. Steffes, Steven M. Levin, Scott J. Bolton, Paolo Tortora, Yohai Kaspi   +15 more
wiley   +1 more source

V659 Cen: System Members Updated

The Astronomical Journal
V659 Cen is a classical Cepheid which is part of a multiple system. Previous observations have shown that a hot companion dominates an ultraviolet spectrum and a cooler main-sequence star dominates an XMM-Newton spectrum. The Hubble Space Telescope Space
Nancy Remage Evans, Charles Proffitt, Pierre Kervella, Joanna Kuraszkiewicz, H. Moritz Günther, Richard I. Anderson, Alexandre Gallenne, Antoine Mérand, Boris Trahin, Giordano Viviani, Shreeya Shetye   +10 more
doaj   +1 more source

Late-time acceleration with steep exponential potentials

European Physical Journal C: Particles and Fields, 2017
In this letter, we study the cosmological dynamics of steeper potential than exponential. Our analysis shows that a simple extension of an exponential potential allows to capture late-time cosmic acceleration and retain the tracker behavior.
M. Shahalam, Weiqiang Yang, R. Myrzakulov, Anzhong Wang   +3 more
doaj   +1 more source

REQUIEM-2D Methodology: Spatially Resolved Stellar Populations of Massive Lensed Quiescent Galaxies from Hubble Space Telescope 2D Grism Spectroscopy [PDF]

, 2020
Mohammad Akhshik, Katherine E. Whitaker, Gabriel Brammer, Guillaume Mahler, Keren Sharon, Joel Leja, Matthew Bayliss, Rachel Bezanson, Michael D. Gladders, Allison W. S. Man, Erica J. Nelson, Jane R. Rigby, Francesca Rizzo, Sune Toft, Sarah Wellons, Christina C. Williams   +15 more
openalex   +1 more source