Results 51 to 60 of about 35,066 (146)

Microalgae: A Solution for Food Security and Multiplanetary Farming

Food Frontiers, Volume 6, Issue 3, Page 1242-1251, May 2025.
ABSTRACT Human civilization is threatened by food insecurity and habitat loss owing to the cumulative effects of anthropogenic and natural factors. Thus, increasing food production while using fewer resources and exploring the potential of interstellar migration is essential.
Xiulan Xie, Jiasui Zhan, Maozhi Ren
wiley   +1 more source

Do the Antennas of DEMETER Spacecraft Detect Dust Impacts?

Journal of Geophysical Research: Space Physics, Volume 130, Issue 5, May 2025.
Abstract This study investigates pulses detected by the electric field instrument, ICE (Instrument Champ Electrique) onboard the DEMETER spacecraft. Using an automated identification algorithm, we identified 1,000 short pulses recorded in 2005 and 2010. The spatial distribution of these signals, primarily localized over South America and near the South
Samia Ijaz, Jakub Vaverka, Jana Šafránková, Zdeněk Němeček   +3 more
wiley   +1 more source

Tomographic Imaging of the Sagittarius Spiral Arm's Magnetic Field Structure

The Astrophysical Journal
The Galactic global magnetic field is thought to play a vital role in shaping Galactic structures such as spiral arms and giant molecular clouds. However, our knowledge of magnetic field structures in the Galactic plane at different distances is limited,
Yasuo Doi, Kengo Nakamura, Koji S. Kawabata, Masafumi Matsumura, Hiroshi Akitaya, Simon Coudé, Claudia V. Rodrigues, Jungmi Kwon, Motohide Tamura, Mehrnoosh Tahani, Antonio Mario Magalhães, Reinaldo Santos-Lima, Yenifer Angarita, José Versteeg, Marijke Haverkorn, Tetsuo Hasegawa, Sarah Sadavoy, Doris Arzoumanian, Pierre Bastien   +18 more
doaj   +1 more source

Using numerical models of bow shocks to investigate the circumstellar medium of massive stars

, 2014
Many massive stars travel through the interstellar medium at supersonic speeds. As a result they form bow shocks at the interface between the stellar wind.
Cox, Nick, Decin, Leen, Meliani, Zakaria, van Marle, Allard Jan   +3 more
core   +3 more sources

Numerical Study of Radiative and Dissipative MHD Casson Nanofluid Over a Cone With High‐Order Chemical Reaction

Engineering Reports, Volume 7, Issue 4, April 2025.
This study investigated the dissipative effects on time‐dependent Casson nanofluid motion over a cone, considering variable heat source/absorption and higher‐order reacting species. Water ethylene glycol was employed as the Casson base fluid. The proposed model has broad applicability across various scientific, engineering, and technological domains ...
L. Joseph Sademaki, B. Prabhakar Reddy, P. M. Matao   +2 more
wiley   +1 more source

Magnetic Fields in the Southern Coalsack and Beyond

The Astronomical Journal
Starlight polarimetry, when combined with accurate distance measurements, allows for exploration of the three-dimensional structure of local magnetic fields in great detail.
M. J. F. Versteeg, Y. Angarita, A. M. Magalhães, M. Haverkorn, C. V. Rodrigues, R. Santos-Lima, Koji S. Kawabata   +6 more
doaj   +1 more source

The Hermean Helium Exosphere—Continuous and Sporadic Helium Release Processes

Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.
Abstract Since its detection by Mariner 10, helium has been a key focus in studies of Mercury's exosphere. Recently, Weichbold et al. (2025), https://doi.org/10.1029/2024je008679 provided the first in situ helium measurements, inferring density from Ion Cyclotron Wave (ICW) events observed by the MESSENGER spacecraft.
J. Hener, P. Wurz, F. Weichbold, H. Lammer, D. Schmid, A. Vorburger   +5 more
wiley   +1 more source

Imprints of the Local Bubble and Dust Complexity on Polarized Dust Emission

The Astrophysical Journal
Using 3D dust maps and Planck polarized dust emission data, we investigate the influence of the 3D geometry of the nearby interstellar medium (ISM) on the statistics of the dust polarization on large ( $80^{\prime} $ ) scales.
George Halal, S. E. Clark, Mehrnoosh Tahani   +2 more
doaj   +1 more source

X-Ray Emission from Star-Forming Galaxies - Signatures of Cosmic Rays and Magnetic Fields

, 2014
The evolution of magnetic fields in galaxies is still an open problem in astrophysics. In nearby galaxies the far-infrared-radio correlation indicates the coupling between magnetic fields and star formation.
Klessen, Ralf S., Schleicher, Dominik R. G., Schober, Jennifer   +2 more
core   +1 more source

NAIRAS Version 3 Atmospheric Ionizing Radiation Validation: Comparisons to RaD‐X Measurements

Space Weather, Volume 23, Issue 4, April 2025.
Abstract The Nowcast of Aerospace Ionizing RAdiation System (NAIRAS) model predicts dosimetric and radiative flux quantities for assessing human radiation exposure levels and radiation effects on flight electronic systems from the surface of the Earth to deep space. NAIRAS version 3 includes many updates and improvements to the model.
Christopher J. Mertens, Guillaume P. Gronoff, Daniel B. Phoenix   +2 more
wiley   +1 more source