Mastodawn

Orbit News Hub Feb 20

Earth’s Magnetic Field Shift: The Mysterious 40-Million-Year-Old Geological Discovery Explained

https://orbitnewshub.com/earths-magnetic-field-shift/

#EarthScience #MagneticField #Geology #Paleomagnetism

Daniel Fischer Feb 12

Mantle heterogeneity influenced Earth’s ancient magnetic field: https://www.nature.com/articles/s41561-025-01910-1 -> Deep heat has guided Earth’s #MagneticField for hundreds of millions of years: https://www.earth.com/news/deep-heat-has-guided-earths-magnetic-field-for-hundreds-of-millions-of-years/

Mantle heterogeneity influenced Earth’s ancient magnetic field - Nature Geoscience

Earth’s core dynamo, which produces the magnetic field, may have been influenced by spatial variations in heat flux across the core–mantle boundary, according to combined palaeomagnetic datasets and geodynamo simulations.

Nature

Scientific World Feb 6

Discover how hidden deep-Earth rock structures near the mantle-core boundary are reshaping our understanding of the planet’s magnetic field. Learn how these colossal formations stabilize and alter Earth’s protective shield against solar radiation.
#EarthScience #MagneticField #Geophysics #DeepEarth
https://www.scientificworldinfo.com/2026/02/hidden-deep-earth-structures-shaping-the-magnetic-field.html

The Hidden Deep-Earth Structures Shaping the Magnetic Field

Hidden deep beneath Earth’s surface, enormous rock structures are quietly influencing the planet’s magnetic field. Scientists have only rece...

Blogger

💧🌏 Greg Cocks Jan 27

Earth's Magnetic Shield Protecting The Planet From A Pelting By The Solar Wind
See how the sun's energy drives a remarkable planetary engine, the climate
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https://youtu.be/6hD52H7rQak?si=OBGYbK8Czbi0uwlc <-- shared video
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[‘cannibalising’ (sic) my own post (!) to bring attention to this outstanding video visualisation and overview, science education/explanation at its finest!; narrated so well (of course!) by #liamneeson !!]
#GIS #spatial #mapping #geology #structuralgeology #magneticfield #SouthAtlanticAnomaly #SAA #spaceweather #geomagnetism #risk #hazard #hardening #magneticfieldstrength #protection #CME #coronalmassejection #sun #solar #solarwind #visualisation #visualization #education #scienceeducation #overview #explanation
#NASA

💧🌏 Greg Cocks Jan 27

NASA Is Watching a Huge Anomaly Growing in Earth's Magnetic Field [SAA]
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https://www.sciencealert.com/nasa-is-watching-a-huge-anomaly-growing-in-earths-magnetic-field <-- shared technical article
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https://youtu.be/qpdQcw_52iM?si=Hn0EZkOGJOMihC71 <-- shared @nasa video - “NASA Explores Earth's Magnetic 'Dent'”
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https://en.wikipedia.org/wiki/South_Atlantic_Anomaly <-- shared SAA wiki
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https://youtu.be/6hD52H7rQak?si=OBGYbK8Czbi0uwlc <-- shared video – “Watch [a visualisation of how the] Earth's magnetic shield protect[s] the planet from a pelting by the solar wind…” [narrated so well (of course!) by #liamneeson !!!!]
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#GIS #spatial #mapping #remotesensing #earthobservation #geology #structuralgeology #magneticdent #magneticanomaly #magneticfield #SouthAtlanticAnomaly #SAA #spaceweather #geomagnetism #satellite #SWARM #orbitalspacecraft #spacecraft #risk #hazard #hardening #magneticfieldstrength #protection #CME #coronalmassejection #sun #solar #solarwind #NASA #ESA
@nasa @esa

Show thread

65dBnoise Jan 10

@raumfahrttutnot
Here is the English #ETHZurich version:

https://ethz.ch/en/news-und-veranstaltungen/eth-news/news/2026/01/laengste-beobachtung-einer-aktiven-sonnenregion.html

#magneticfield #Switzerland
#Sun #solarstorm #spaceweather #space

Longest observation of an active solar region

In May 2024, the strongest solar storm in twenty years raged. An international team led by ETH Zurich observed it. Their findings are now helping to improve space weather forecasts.

ETH Zurich

💧🌏 Greg Cocks Nov 10