Magnetic Fields, Electromagnetism, bioelectricity, – My WordPress Site

Artist’s impression of the simulations conducted in this research. Jupiter (lower left) has a strong magnetic field which creates a cavity in its circumplanetary disk. Saturn (upper right) lacks a strong magnetic field so its circumplanetary disk evolves without a cavity. Credit: Yuri I. Fujii/L-INSIGHT [Kyoto University], Illustrator: Shinichiro Kinoshita

Astrogeology, Callisto, Enceladus, Europa, Ganymede, Gas Giants, Icy Worlds, Io, Jupiter, Magnetic Fields, Electromagnetism, bioelectricity,, Rhea, Saturn, Titan, Water/Hycean Worlds & Oceanography

How Jupiter Cultivated More Large Moons Than Saturn

by Keith CowingApril 8, 2026April 8, 2026

The two largest planets in our Solar System, Jupiter and Saturn, also have the largest satellite systems, or the most moons. At present, Jupiter’s reported moon count stands at more than 100 moons, and along with its many rings Saturn has more than 280 reported moons.

NASA's Juno spacecraft passed north-to-south (yellow track) over Jupiter's atmosphere on 17 August 2022, detecting a cluster of radio pulses from lightning (cyan symbols marking instrument pointing for each pulse). Credit Wong et al. (2026, AGU Advances; HST and Juno MWR).

Atmospheres, Climate, Weather, Biophysics, Biosignatures & Paleobiology, Gas Giants, Jupiter, Magnetic Fields, Electromagnetism, bioelectricity,

Lightning Bolts On Jupiter Pack More Than 100 Times The Power Of Earth’s Flashes

by Keith CowingApril 5, 2026April 5, 2026

Contributions to the peak 𝑃𝑅 from the bow shock and magnetopause at 𝜂 = 5.38018 × 108cm2s−1 for Case #1 (panel a), Case #2 (top of panel b), and Case #3 (bottom of panel b). The volumetric renderings show ∇ · Stotal in erg cm−3 s−1. -- astro-ph.EP

Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Magnetic Fields, Electromagnetism, bioelectricity,, Space Weather & Heliophysics, TRAPPIST-1

Resistive MHD Simulations of Stellar Wind-Magnetosphere Coupling in TRAPPIST-1e

by Keith CowingApril 2, 2026April 2, 2026

Scatter plots of potential candidate in frequency, drift rate and signal-to-noise ratio for each polarization channel. The color and the size for each point represent the value of SNR in log space. The green and red color bar is the frequency ranges of civil aviation and navigation satellites, respectively. The black dashed lines represent the expected drift rates for each observation date. -- astro-ph.IM

Astronomy & Telescopes, Biosignatures & Paleobiology, Comets and Asteroids, Intelligence & Language, Interstellar, Magnetic Fields, Electromagnetism, bioelectricity,, SETI & Technosignatures

Narrowband Radio Technosignature Search Toward 3I/ATLAS With FAST

by Keith CowingMarch 21, 2026March 21, 2026

Numerical ocean-induction setup for Ganymede in a deep-ocean scenario with Re m = 1.77. Ganymede’s internal structure is depicted, featuring the ice crust, the deep ocean with its simulated zonal flow, the internal ice layer, the silicate mantle, and the metallic core. Yellow tubes visualize the magnetic field lines. The bottom-right panel shows how magnetic field lines are sheared by the zonal (east–west) jet flow in the ocean (blue/red denote westward/eastward jets, respectively), thereby reflecting the secondary magnetic field induced by such dynamics. -- astro-ph.EP

Astrogeology, Ganymede, Icy Worlds, Jupiter, Magnetic Fields, Electromagnetism, bioelectricity,, Mapping, Geodesy, Cartography, Water/Hycean Worlds & Oceanography

Motional Induction In Ganymede’s Ocean

by Keith CowingMarch 14, 2026March 14, 2026

The reconstructed timeframe of the YSDP-4 drill core. (A) Depth-adjusted χfd% series (gray curve)

Astrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Extinction events, Gaia - Planetary Perspectives, Habitable Zones, Lava / magma ocean / Volcanic Worlds, Magnetic Fields, Electromagnetism, bioelectricity,, Origin & Evolution of Life, Water/Hycean Worlds & Oceanography

New Study Reveals Asynchronous Land–ocean Responses To Ancient Ocean Anoxia

by Keith CowingMarch 9, 2026March 9, 2026

ultraviolet aurorae on Ganymede ©️ NASA/JPL-Caltech/SwRI/UVS/ULiège/Gusbin/Bonfond

Ganymede, Jupiter, Magnetic Fields, Electromagnetism, bioelectricity,, Radiation, Space Weather & Heliophysics

Similarities Between Auroras On Ganymede And Earth

by Keith CowingFebruary 25, 2026February 25, 2026

Height scales of atmospheres of Solar System’s terrestrial planets. The solid lines show the temperature profiles against altitude, while the background color reflects the atmospheric pressure. Horizontal dashed lines denote the average positions of atmospheric boundaries: tropopause ("t"), stratopause ("s"), and mesopause ("m"). Vertical cyan lines depict the extension of ionospheres ("i") under typical conditions. The "⊙" symbol denotes the 100 mbar level. -- astro-ph.EP

Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Magnetic Fields, Electromagnetism, bioelectricity,

Upper Atmosphere Dynamics And Drivers Of Volatiles Loss From Terrestrial-type (exo)Planets

by Keith CowingFebruary 18, 2026February 18, 2026

Deep layers of molten rock inside some super-earths could generate powerful magnetic fields—potentially stronger than Earth’s—and help shield these exoplanets from harmful radiation. (University of Rochester Laboratory for Laser Energetics illustration / Michael Franchot)

Atmospheres, Climate, Weather, Biophysics, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Lava / magma ocean / Volcanic Worlds, Magnetic Fields, Electromagnetism, bioelectricity,, Radiation

Hidden Magma Oceans Could Shield Rocky Exoplanets From Harmful Radiation

by Keith CowingJanuary 21, 2026January 21, 2026

Phylogenetic relationship among known OmcA/MtrC decaheme c-type cytochromes from diverse bacteria and the newly identified D. acetexigens MtrC detected in this study. Maximum-likelihood phylogenetic tree constructed from a concatenated alignment of the known diversity of OmcA/MtrC decaheme c-type cytochromes and the D. acetexigens MtrC detected in this study. Color codes were assigned by taxonomic order. Bootstrap support values ≥90% from 1000 resamples are indicated with filled black circles. The scale bar represents average changes per amino acid position. MtrC, OmcA, MtrH, MtrG, UndA, and MtrF indicate members of the MtrC family of proteins. MtrC of D. acetexigens is indicated with a red dot. A full resolution image of the tree is available in Supplementary Fig. 11. -- The ISME Journal

Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Magnetic Fields, Electromagnetism, bioelectricity,, Microbiology & Virology

Bacteria Reveal Hidden Powers Of Electricity Transfer

by Keith CowingJanuary 14, 2026January 14, 2026