NASA's Parker Solar Probe Flew In And Out Of The Solar Corona And Found A Source Of High-Energy Particles That No Existing Model Had Predicted
(When NASA's Parker Solar Probe passed through the solar corona during perihelion encounters at the heliospheric current sheet, its instruments recorded energetic protons at energies far above what existing models of particle acceleration at that location could account for.)
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https://spacedaily.com/n-nasas-parker-solar-probe-flew-in-and-out-of-the-solar-corona-and-found-a-source-of-high-energy-particles-that-no-existing-model-had-predicted/ <-- shared technical article
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https://doi.org/10.3847/2041-8213/ae3ca1 <-- shared paper
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https://www.space.com/high-energy-particles-source-space-weather <-- shared technical article
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https://youtu.be/Woo4yZby4BU?si=rzzND3qJkubGKyTo <-- shared space weather overview effects video, #AIslop notwithstanding 🙃 🫠 😉
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“… A team… at the Southwest Research Institute… and… the University of Maryland’s Institute for Research in Electronics and Applied Physics has published an analysis of those measurements [link above]…, identifying magnetic reconnection at the heliospheric current sheet as the mechanism responsible. The proton energies detected were, in the study’s framing, approximately a thousand times greater than the available magnetic energy per particle that models of this process had predicted.
The finding matters for two reasons: it identifies a source of energetic particles close to the Sun that was not anticipated, and it raises questions about how far the existing understanding of reconnection-driven particle acceleration extends…
The Parker measurements suggest that picture needs revision. The magnetic island merging mechanism [the authors] identif[ied] can evidently produce proton populations at energies that challenge the boundary between what reconnection does and what shock acceleration does. Whether this source can explain a significant fraction of observed near-Earth energetic particle events, or whether it contributes mainly at energies and scales that remain confined close to the Sun, is a question the paper does not yet resolve…
Solar Orbiter, the European Space Agency mission operating in coordination with Parker, offers complementary measurements at somewhat greater distances. Comparing what the two spacecraft measure of the same particle populations as they propagate outward from the Sun will help establish which features originate close to the source and which are modified by the intervening solar wind. The energetic particle observations that puzzled researchers in the pre-Parker era now have a candidate mechanism. Whether that mechanism accounts for a large or small fraction of what actually reaches Earth remains the open question…”
#sun #solar #solarsystem #heliosphere #Parker #SolarOrbiter #spacecraft #research #monitoring #instrumentatin #spaceweather #solarflare #coronalmassejection #CME #NASA #ESA #magnetism #geomagnetism #proton #energy #particleacceleration #measurement #solarwind #risk #hazard #impacts #corona #perihelion #model #modeling
@nasa @esa

Almost 50 years old, the Voyager 1 space craft now traveling through Interstellar space continues to operate, but maybe showing signs of dementia! 😜 In short - the space craft is acting "weird". https://discoverwildscience.com/voyager-1-keeps-sending-strange-data-from-interstellar-space-and-scientists-are-baffled-1-406760/ #Space #SpaceExploration #Voyager1 #NASA #SpaceCraft #IntersellarSpace #CosmicRays #Experiment

A spacecraft no larger than a small car, launched the year Star Wars came out, is still moving outward at 38,000 miles per hour far beyond the orbit of Pluto — and the radio signals it sends home, traveling at the speed of light, now take more than 23 hours to reach the engineers who built it, most of whom are no longer alive
https://atlas.whatip.xyz/post.php?slug=a-spacecraft-no-larger-than-a-small-car-launched-the-year-star-wars-came-out-is-still-moving-outward-at-38000-miles-per-hour-far-beyond-the-orbit-of-pluto-and-the-radio-signals-it-sends-home-traveling-at-the-speed-of-light-now-take-more-than-23-hours-to-reach-the-engineers-who-built-it-most-of-whom-are-no-longer-alive
<p>Voyager 1 has been in flight for longer than most of the people on Earth have been alive
#spacecraft #engineers #longer #larger

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Yahoo
https://atlas.whatip.xyz/post.php?slug=strange-interstellar-comet-speculated-to-be-alien-spacecraft-is-older-than-solar-system-yahoo
<p>Strange interstellar comet speculated to be alien spacecraft is older than Solar SystemYahoo
#interstellar #speculated #spacecraft #strange

Loft Orbital to test AI models on spacecraft for Earth observation
https://atlas.whatip.xyz/post.php?slug=loft-orbital-to-test-ai-models-on-spacecraft-for-earth-observation
<p>Loft Orbital is working with NASA’s Jet Propulsion Laboratory to test the use of artificial
#observation #spacecraft #orbital #working