Phase Research Center

Understanding Why Matter Matters, One Phase at a Time

  • Home
  • Solids
  • Liquids
  • Gases
  • Plasma
  • Phase Changes
  • Contact

Plasma: The Energy Phase

Plasma is the fourth state of matter, often described as an energized gas with unique properties. Unlike neutral gases, plasma consists of charged particles—ions and free electrons—that respond strongly to electric and magnetic fields. While it may seem rare on Earth, plasma makes up over 99% of the visible universe, including the Sun, stars, and lightning.

Plasma has a wide range of applications, from neon signs and plasma TVs to advanced research in nuclear fusion, which could one day provide limitless clean energy. Scientists study plasma to understand cosmic phenomena and develop new technologies in medicine and industry. By unlocking the mysteries of plasma, we continue to push the boundaries of science and engineering.

© 2025 Phase Research Center, Daniel Sagan