#plasmas — Public Fediverse posts

[An #ENA imager headed for #Uranus?] ENAs are energetic neutral atoms produced during #collisions in hot #plasmas. They are omnipresent in space environments.

The interplanetary probes #Cassini and #JUICE carry (or carried) an ENA imager. Various #simulations reveal that such a detector aboard the #Voyager2 probe would have provided a better understanding of Uranus’s magnetospheric environment: https://www.irap.omp.eu/en/2026/05/back-to-the-future-viewing-uranus-through-an-ena-camera/

[Un imageur #ENA à destination d'#Uranus ?] Les ENA sont des atomes neutres énergétiques produits lors de #collisions dans les #plasmas chauds. Ils sont omniprésents dans les environnements spatiaux.

Les sondes interplanétaires #Cassini, #JUICE, embarqu(ai)ent un imageur ENA. Un tel détecteur à bord de la sonde #Voyager2 aurait permis de mieux comprendre le système magnétosphérique d’Uranus, révèlent diverses #simulations : https://www.irap.omp.eu/2026/05/retour-vers-le-futur-observer-uranus-a-travers-une-camera-ena/

1928-1929: Instabilities in plasmas result in oscillations of electron charge density. #Poetry #Science #History #Physics #Plasmas #Langmuir #Tonks (https://sharpgiving.com/thebookofscience/items/p1928c.html)

#Physicists often turn to the Rayleigh-Taylor instability to explain why #fluid structures form in #plasmas, but that may not be the full story when it comes to the ring of hydrogen clumps around #supernova 1987A, research from the University of Michigan suggests.
#SpaceScience #Physics #sflorg
https://www.sflorg.com/2024/03/sn03132402.html

#Nature 📆 10 November 2022 #Electric #propulsion : The gaseous #propellant is priorly #ionized and the charged #particles in the #plasmas are energized and #accelerated by applying #electromagnetic fields. #Electric #power obtained by #solar panels is converted into the #kinetic #energy of the propellant. A 30% conversion #efficiency is the highest to date https://www.nature.com/articles/s41598-022-22789-7

#Spacecraft electric propulsion https://en.wikipedia.org/wiki/Spacecraft_electric_propulsion

Most people are familiar with #solids, #liquids, and #gases as three states of matter. However, a fourth state of matter, called #plasmas, is the most abundant form of matter in the #universe, found throughout our #solar system in the #sun and other #planetary bodies
#Physics #sflorg
https://www.sflorg.com/2022/11/phy11182202.html

Electrons in ionosphere catch a plasma wave to produce brightest auroras - Enlarge / Physicists report definitive evidence that auroras that light up the sk... - https://arstechnica.com/?p=1771437 #resonanceacceleration #alfvenwaves #astronomy #science #auroras #physics #plasmas