#magnetosphere — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #magnetosphere, aggregated by home.social.
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Especially interesting: #Reconnection at #Mars is not just a local #plasma process. It can restructure the induced #magnetosphere, generate flux ropes and jets, open magnetic escape pathways, contribute to #auroral activity, and possibly affect #atmospheric ion loss.
Even a planet without a global #MagneticField can have very dynamic #PlasmaPhysics.
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In 1946, Walter M. Elsasser explained that convection in Earth’s outer core creates the magnetosphere. #Poetry #Science #History #Electromagnetism #Earth_science #Magnetosphere #Elsasser (https://sharpgiving.com/Sharp/thebookofscience/items/p1946c.html)
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Russian Nuclear Blast In Space — When Kremlin Blasted 300 KT Of Warhead Over Kazakhstan, Displaying The Power Of EMP Attack
By Shubhangi Palve -
December 17, 2024"Could nuclear warheads wipe out thousands of satellites orbiting Earth? This concept, once explored by the Soviet Union, has resurfaced amid rising geopolitical tensions, raising alarms about the dawn of a new era in space warfare.
"On February 5, 2022, Russia launched #Kosmos2553, which settled into a remote orbit 1,240 miles above Earth—higher than most operational satellites.
"While it appears unassuming, #Cosmos2553 represents a chilling advancement in Russia’s potential to threaten military and commercial satellites using nuclear blasts in space.
"Since its deployment, U.S. Space Command in Colorado Springs has kept a vigilant eye on Cosmos 2553.
"In February 2024, the White House publicly acknowledged the satellite as part of a 'troubling' Russian anti-satellite weapon program. While officials clarified it posed no direct physical threat to Earth, its potential to devastate critical satellite networks has raised alarms.
Orbit Of Concern: The Graveyard
"Cosmos 2553 orbits in a region called the #GraveyardOrbit, circling Earth every two hours. Just inside the highly radioactive #VanAllenBelts, this area is sparsely populated—only about 10 defunct satellites are out there.
"Yet, U.S. officials suggest Cosmos 2553 is a testbed for a weapon capable of obliterating hundreds, if not thousands, of satellites, which could cripple global communications and defense infrastructure.
History Of Nuclear Weapons In Space
"Both the United States and the Soviet Union experimented with nuclear detonations in space during the 1960s. These tests aimed to understand how nuclear weapons behaved in the upper atmosphere and beyond, often with unforeseen and catastrophic effects.
"The U.S. conducted 11 tests under #OperationFishbowl, with the most famous, #StarfishPrime, detonating 250 miles above the Pacific Ocean in 1962. The blast knocked out radio systems and power grids in Hawaii, leaving a trail of #radiation lingering in Earth’s #magnetosphere for years.
"Meanwhile, the Soviets carried out #ProjectK, a series of nuclear tests between 1961 and 1962. These experiments further highlighted the potential for nuclear weapons to wreak havoc in orbit—generating electromagnetic pulses (EMPs) that could disable satellites and disrupt global systems.
"In this article, we examine the Soviet Project K tests in-depth, exploring how they shaped the early days of space warfare and their lasting implications for today’s emerging threats."
Read more:
https://www.eurasiantimes.com/project-k-can-nuclear-warheads-destroy-satellites-in-orbit/#NukesInSpace #NoNukesInSpace
#LEO #KesslerEffect #KesslerSyndrome
#NoNukes #NoWar #NuclearWeapons #Satellites -
https://www.europesays.com/ie/364684/ Astronomer Deciphers Crab Pulsar’s Zebra Stripes #CrabNebula #CrabPulsar #Éire #GravitationalLens #gravity #IE #Ireland #Magnetosphere #nebula #NeutronStar #plasma #pulsar #RadioSignal #Science #Spectrum #star #Supernova #SupernovaRemnant
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Viewing an Exoplanet Transmission Spectrum 🛰️
#Exoplanet #ExoplanetAtmospheres #Fleet #Heliopause #Heliophysics #Heliosphere #Magnetopause #Magnetosphere
⏩ 3 new pictures and 3 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=22&user=OptimusPrimeBot&ilshowall=1&offset=20260128125704
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Aurora Australis from Royal National Park! This is AMAZING.
The big solar storm that is passing us this week, triggered nu a coronal mass ejection from the Sun has produced a class G4 / G5 geomagnetic storm.
Our magnetosphere deflects most of the particles from Sun away, but near the poles, some spiral down and excite our atmosphere - producing aurora.
This storm was powerful enough to generate aurora sightings as far north as Coonabarabran and the Siding Spring Observatory. That's around 340 km NW of Sydney (closer to the equator, at 31 degrees south!)
While city lights drowned out the view for many, those under darker skies were treated to an extraordinary show. This stunning timelapse footage, captured by my friend Filippo Rivetti from Royal National Park south of Sydney, offers a glimpse of the awe-inspiring beauty and planetary-scale force of this event.
A reminder of the vast, dynamic forces at play: a star lashing out across space, and a planet, our home planet with its protective magnetic shield - hosting the only life we know of so far in the Universe, safely within.
https://www.youtube.com/watch?v=cXP49hxf9ck
#AuroraAustralis #SolarStorm #SpaceWeather #Astrophysics #CMEs #Magnetosphere #Astrodon
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It's more about whether or not Earth's #magnetosphere is affected by the #GeomagneticStorm, rather than the #SolarFlares themselves.
Could an extremely powerful #SolarFlare destroy all the electronics on Earth?
By: Jonathan Strickland
Updated: Jun 9, 2023"Because our atmosphere absorbs most of these dangerous rays, terrestrial systems are fairly safe from solar flares. But another solar event called a coronal mass ejection (#CME) can cause serious problems for electrical systems here on Earth. During a CME, the fluctuations of the sun's magnetic fields cause a large portion of the surface of the sun to expand rapidly, ejecting billions of tons of particles out into space.
"Sometimes CMEs accompany solar flares -- but not all solar flares produce #CMEs and not all CMEs accompany solar flares.
"Unlike a solar flare, a CME doesn't produce intense light. But it does produce a magnetic shockwave that extends billions of miles out into space. If Earth is in the path of that shockwave, our planet's magnetic field will react to the event. It's similar to what happens if you put a weak magnet next to a strong one. The weak magnet's field will align itself to the strong magnet's field. A magnetic shockwave from the sun could cause the alignment of the Earth's magnetic field to shift unpredictably.
"Pretty lights aren't the only consequence from a CME. The magnetic fluctuations can cause compasses to fail. And since magnetic fields can induce electricity, any conductor could become an inductor. A powerful CME could induce electricity in large, powerful conductors. That could overload electrical systems and cause massive damage."
Read more:
https://science.howstuffworks.com/solar-flare-electronics.htm