Results 181 to 190 of about 9,980 (290)

Massive Rocky Planets May Suppress Deep Melting

AGU Advances, Volume 7, Issue 4, August 2026.
Abstract Melting properties of silicates are critical to understanding the thermal evolution of rocky planetary interiors. In the deep mantles of massive rocky planets, post‐post‐spinel Mg2SiO4 ${\text{Mg}}_{2}{\text{SiO}}_{4}$ is potentially one of the most abundant mineral phases, yet its melting behavior remains unconstrained. Here, we determine the
Donghao Zheng, Yihang Peng, Jie Deng
wiley   +1 more source

Relativistic electron acceleration at the bow shock of Jupiter and beyond. [PDF]

Nature
Raptis S, Turner DL, Caprioli D, Szalay JR, Clark G, Haggerty CC.   +5 more
europepmc   +1 more source

Bidirectional Energy Transfer via Simultaneous Wave‐Particle Resonances in Inhomogeneous Space Plasmas

AGU Advances, Volume 7, Issue 4, August 2026.
Abstract Wave‐particle resonance is a key mechanism for energy transfer in collisionless plasmas with important implications for wave excitation and particle acceleration. Cyclotron resonance occurs when a particle's gyromotion synchronizes with the wave fields, with their interactions usually describable by quasilinear diffusion or nonlinear trapping.
Jing‐Huan Li, Xu‐Zhi Zhou, Shan Wang, Zhi‐Yang Liu, Yuri V. Khotyaintsev, Daniel B. Graham, Qiu‐Gang Zong, Chao Yue, Anton V. Artemyev, Yoshiharu Omura, Si Liu, Li Li, Jie Ren, Zi‐Kang Xie, Yun Yan   +14 more
wiley   +1 more source

Cosmic-ray bath in a past supernova gives birth to Earth-like planets. [PDF]

Sci Adv
Sawada R, Kurokawa H, Suwa Y, Taki T, Lee SH, Tanikawa A.   +5 more
europepmc   +1 more source

Earth and Solar System are formed and operated by Quantum, physics science astronomy, part2

Earth and Solar System are formed and operated by Quantum. Physical analysis of archaeological data and traces on the entire Earth. Decoding Quantum, decoding the Universe. QUANTUM are perfect physical entities, have the power to operate the Universe, are the source of all movement. Quantum create all matter, planets, life,...
openaire   +2 more sources

Migrating and Nonmigrating Neutral Mass Density Tides From GRACE‐FO Observations for Solar Minimum Conditions

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract This study presents the migrating and nonmigrating thermospheric neutral mass density tides from the Gravity Recovery And Climate Experiment Follow‐On (GRACE‐FO) observations under solar minimum conditions (year 2020). The observed densities are first mapped to a reference altitude of 500 km using an empirical model (NRLMSIS 2.0) to remove the
Mukta Neogi, Jens Oberheide
wiley   +1 more source

Accurate determination of chemical abundances near a supermassive black hole. [PDF]

Nat Astron
XRISM Collaboration.
europepmc   +1 more source

A Contrasting TEC Behavior Over the Low‐Latitude Post‐Midnight Sector During Recovery Phases of May and October 2024 Storms: Possible Role of PPEF, DDEF, and O/N2

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract The present study reports on the variability of the post‐midnight ionosphere over the low‐latitude sector during the recovery phases of the May and October 2024 storms. Multi‐instrument observations, comprising global navigation satellite system total electron content (TEC), F‐layer peak height, electron density profiles, and column O/N2 ...
Rahul Rathi, Akash Kumar, Alok Kumar Ranjan, Dipjyoti Patgiri, Satarupa Chakrabarti, Lot Ram   +5 more
wiley   +1 more source

Near‐Earth Cosmic Ray Modulation Index ϕ and Neutron Monitor Cutoff Rigidities at Hourly Cadence: Toward an Improved Monitoring of Solar‐Terrestrial Radiation Environment, Space Weather, and Space Climate

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Cosmic rays (CRs) are energetic particles originating from galactic and extragalactic sources. When arriving into the solar system and the Sun's heliosphere, they are diverted and modulated by the magnetic activity of the Sun. This modulation can be quantified by the modulation parameter ϕ $\phi $ determined with the Force‐field approximation (
Pauli Väisänen, Nicholas Larsen, Sergey Koldobskiy, Markus Similä, David Pelosi, Miguel Orcinha   +5 more
wiley   +1 more source

The abundances of carbon and nitrogen in the atmospheres of classical Be stars. [PDF]

Astrophys Space Sci
Peters GJ, Gayley KG, Rast RG, Vink JS, Drake JJ.   +4 more
europepmc   +1 more source