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Voyager spacecraft crossed 'wall of fire' to reach interstellar space. What is it? – WION

  1. Voyager spacecraft crossed ‘wall of fire’ to reach interstellar space. What is it?  WION
  2. NASA’s Voyager Spacecraft Found A 30,000-50,000 Kelvin “Wall” At The Edge Of Our Solar System  IFLScience
  3. NASA’s Voyager Probes Uncover a Mysterious “Wall of Fire” Beyond Our Solar System  The Daily Galaxy