Results 71 to 80 of about 3,393,330 (216)

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Quantitative comparison between Type Ia supernova spectra at low and high redshifts: A case study [PDF]

, 2008
We develop a method to measure the strength of the absorption features in type Ia supernova (SN Ia) spectra and use it to make a quantitative comparisons between the spectra of type Ia supernovae at low and high redshifts.
Supernova Cosmology Project, Garavini, G.   +1 more
core  

On the Destruction and Humanitarianisation of the Health System in Gaza and the Need for a Biopolitical Bioethics

Bioethics, Volume 40, Issue 8, Page 793-807, October 2026.
ABSTRACT This paper examines Israel's destruction and ‘humanitarianisation’ of Palestinian health systems, arguing that this should be understood as an instance of ‘necropolitics,’ as conceived by Achille Mbembe. We review the extensive, long‐term destruction of health systems in Palestine before 7 October 2023 and the catastrophic acceleration of that
Mohammad Salaymeh, Arianne Shahvisi, Sohail Jannesari   +2 more
wiley   +1 more source

SN 2019cqc: A Hydrogen-rich Superluminous Supernova Showing Electron-scattering Signatures

The Astrophysical Journal
Hydrogen-rich superluminous supernovae without narrow emission lines (SLSNe-II) are rare transients whose powering mechanisms remain debated, particularly the role of circumstellar medium (CSM) interaction.
Dinesh Hebbar, Rupak Roy, Matt Nicholl, Jesper Sollerman, Joseph P Anderson, Mariusz Gromadzki, D. Andrew Howell, Tuomas Kangas, Seppo Mattila, Daichi Hiramatsu, Avishay Gal-Yam, Edo Berger, K. Azalee Bostroem, Ting-Wan Chen, Joseph Farah, Sebastian Gomez, Curtis McCully, Jeonghee Rho   +17 more
doaj   +1 more source

Host‐Associated Differentiation in a Parasitoid Wasp Connected to Venom‐Related but Not Chemosensory Genes

Molecular Ecology, Volume 35, Issue 19, October 2026.
ABSTRACT The mechanisms driving the megadiversity of parasitic wasps remain a central question in evolutionary ecology. To investigate the genomic architecture underlying host‐associated differentiation in parasitic wasps, we generated a de novo genome assembly and performed whole‐genome re‐sequencing of 17 populations of the parasitoid wasp Asecodes ...
Xuyue Yang, Marco Fracassetti, Tanja Slotte, Christopher W. Wheat, Peter A. Hambäck   +4 more
wiley   +1 more source

Resonant neutrino spin-flavor precession and supernova nucleosynthesis and dynamics [PDF]

, 1997
We discuss the effects of resonant spin-flavor precession (RSFP) of Majorana neutrinos on heavy element nucleosynthesis in neutrino-heated supernova ejecta and the dynamics of supernovae.
Qian, Y-Z, Fuller, GM, Nunokawa, H
core   +1 more source

Single versus Binary Origin: The Diversity of Stripped-envelope Supernova Remnants

The Astrophysical Journal
Core-collapse supernova remnants (CCSNRs) are crucial for understanding the final stages of massive star evolution, as they reflect the imprints of their progenitors’ preexplosion activities.
Gaku Kawashima, Shiu-Hang Lee, Keiichi Maeda, Daniel Patnaude   +3 more
doaj   +1 more source

Synthesis and Characterization of the Molybdenum Carbonyl‐Functionalized Zintl Ions [(η4‐Pb4)Mo(CO)3]4− and [Pb4{Mo(CO)3}3]6−

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 13, 1 September 2026.
The reaction of the tetrahedral [Pb4]4− with Mo(CO)4(tmeda) yields two different Mo(CO)3‐functionalized clusters which can both be related to known clusters by the same substitution pattern following the isolobal principle. The crystal structures of [Na([2.2.2]crypt)]2Na2[(η4‐Pb4)Mo(CO)3] · 8.7NH3 and Na6[Pb4{Mo(CO)3}3] · 22NH3 are reported.
Michael Witzmann, Nikolaus Korber
wiley   +1 more source

Investigating Galactic Cosmic Ray Ionization’s Contribution to Aerosol Formation on Neptune and a Potential Link to the Relationship Between Brightness and Solar Activity

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract In this work we investigate how ionization from Galactic Cosmic Rays (GCRs) can affect aerosol nucleation on Neptune and discuss potential implications for the observed brightness variations that appear to follow the solar cycle. We calculate the planetary vertical cutoff rigidity for Neptune based on the O8 ${\mathrm{O}}_{8}$ magnetic field ...
Martin B. B. Enghoff, Paul N. Romani, John E. P. Connerney, John L. Jørgensen   +3 more
wiley   +1 more source

Candidates for historical supernovae and their comparison against known Chinese records [PDF]

, 2003
In this MSc thesis, possible/probable supernova remnants associated with possible/probable historical supernovae are discussed and advancements in knowledge surrounding possible remnants associated with historical supernovae older than about a thousand ...
Wilson, Graham Philip
core