Particle.news

Download on the App Store

Planet Halla Defies Death, Survives Star’s Expansion

  • The gas giant Halla has survived orbiting its host star Baekdu, though Baekdu expanded into a red giant.
  • Baekdu may have originally been two stars that merged, preventing it from expanding enough to swallow Halla.
  • Halla could be a new planet formed from the debris of the stars' merger.
  • Baekdu will likely expand again in the future, putting Halla's survival at risk once more.
  • Halla's escape from destruction suggests other planets may endure their stars' deaths.
Hero image