Astronomers Discover a Mysterious Planet That Shouldn’t Exist
The Jupiter-like planet Halla survived its sun Baekdu’s expansion into a red giant, a process that should have engulfed it, according to astronomers from the University of Hawaii. The surprising survival prompts theories about planetary evolution, including potential binary star origins or Halla being a newly formed “second generation” planet. Credit: W. M. Keck Observatory/Adam MakarenkoAstronomers from the University of Hawaii Institute for Astronomy have discovered a planet that survived what should have been a…