Research news on Plasma waves

Plasma waves as a research area investigates collective oscillations of charged particles and electromagnetic fields in ionized media, spanning linear and nonlinear phenomena in laboratory, space, and astrophysical plasmas. It encompasses electrostatic and electromagnetic modes (e.g., Langmuir, ion-acoustic, Alfvén, whistler, and magnetosonic waves), their dispersion properties, instabilities, mode conversion, and wave–particle interactions such as Landau and cyclotron damping. Research focuses on theoretical modeling, kinetic and fluid descriptions, numerical simulations, and experiments, with applications to controlled fusion, space weather, radiation belt dynamics, and plasma-based acceleration and diagnostic techniques.

A new route for plasma-based particle accelerators

Plasma, the fourth state of matter, consists of a gas in which electrons are no longer bound to atoms, which allows electricity to flow freely. When beams of particles moving close to the speed of light travel through plasma, ...

Volunteers discover rare space weather events using their ears

Our planet rests inside a magnetic cocoon filled with plasma—but it's not always peaceful and quiet. Activity from the sun can send waves through this space, and some of those disturbances can even reach Earth, affecting ...

How the solar wind really works

The sun, our nearest star, never stops breathing. Every second of every day, it exhales a vast stream of charged particles that sweeps outward through the solar system at hundreds of kilometers per second. We call it the ...

Tiny Enceladus exercises giant electromagnetic influence at Saturn

A major study by an international team of researchers using data from the NASA/ESA/ASI Cassini spacecraft has revealed a lattice-like structure of crisscrossing reflected waves that flow downstream behind the moon in Saturn's ...

When lasers cross: A brighter way to measure plasma

Measuring conditions in volatile clouds of superheated gases known as plasmas is central to pursuing greater scientific understanding of how stars, nuclear detonations and fusion energy work. For decades, scientists have ...

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