For 10 points, name this fourth state of matter present in stars, neon signs, and lightning.
The LHC's ALICE is an experiment to create a substance of this type consisting of asymptotically free quarks and gluons. The average number of electrons in a substance of this type in a Debye sphere is this substance's namesake parameter lambda. A tokamak magnetically confines substances of this type to a torus. Substances of this type are studied by Langmuir probes and created through the Townsend discharge. The heliosphere is defined by the extent of a substance of this type emitted by the sun, the solar wind, and these are created by ionizing a gas at high temperatures. For 10 points, name this fourth state of matter present in stars, neon signs, and lightning.
The LHC's ALICE is an experiment to create a substance of this type consisting of asymptotically free quarks and gluons.
plasmas