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CU Boulder Activates One-of-a-Kind Plasma Tunnel to Replicate Hypersonic Reentry

The facility reproduces hypersonic plasma conditions to advance safer spacecraft reentry.

Overview

  • Researchers report the inductively coupled plasma tunnel is operational and already running material tests with an aerospace industry partner, with additional collaborations planned.
  • The system generates plasma flows at hundreds to thousands of miles per hour and temperatures approaching 9,000 degrees Fahrenheit to expose heat shields, sensors, and designs to reentry-like stress.
  • A high-capacity vacuum draws more than 20,000 cubic meters of gas per hour as alternating radio-frequency fields ignite argon, after which air or carbon dioxide can be injected to emulate Earth or Mars entry.
  • The team plans near-term experiments to see whether ultra-strong magnets can nudge charged particles and shock layers to provide limited steering authority during hypersonic flight.
  • Lead researcher Hisham Ali describes the chamber as unique worldwide, framing the work as a step toward improving crewed reentry safety and future space-tourism operations.