Is there a giant, unseen monster planet lurking at the edge of our solar system? The latest evidence for Planet Nine suggests a world up to 10 times the mass of Earth is hiding in the dark, and we might be closer than ever to finding it. Join us on a deep dive into one of the greatest cosmic mysteries of our time. This space documentary explores the tantalizing hunt for Planet 9 (also known as Planet X), a hypothetical giant that could be secretly shaping the orbits of distant objects in the Kuiper Belt. We'll examine the groundbreaking evidence from astronomers Mike Brown and Konstantin Batygin, analyze the strange clustering of trans-Neptunian objects, and reveal the latest search efforts that have identified a promising new candidate for this elusive world. But the story doesn't end there. Our journey takes us beyond Planet Nine to explore the ghosts of other lost and hypothetical worlds, from the shattered planet Phaeton that may have formed the asteroid belt, to the fiery, sun-scorched planet Vulcan that was once thought to orbit Mercury. Finally, we venture out into the galaxy to witness a true "Galaxy of Horrors," showcasing the most bizarre and impossible exoplanets ever discovered. From worlds that rain glass sideways to planets that shouldn't exist at all, we reveal the shocking truth about what's really out there in the universe. Could a planet be intelligent? Does our solar system hold even more secrets? If you love astronomy, astrophysics, and deep space exploration, you don't want to miss this. 🌌 VIDEO CHAPTERS / TIMESTAMPS: (Please adjust the timestamps below to match your final video edit!) 0:00 A 20,000-Year Orbit: The Ghost in Our Solar System 2:15 How a Demoted Planet Led to a New Hunt 4:40 The Cosmic Breadcrumbs: Evidence in the Ice 6:55 Portrait of a Phantom: What is Planet Nine? 9:10 A History of Ghosts: Why We Should Be Cautious 11:30 The Lost Planet Phaeton: A Solar System Murder Mystery? 15:05 The Modern Hunt: A New Candidate Emerges 18:20 What Planet Nine Would Explain 21:10 Journey to the Galaxy of Horrors 23:00 Worlds of Fire, Glass, and Burning Ice 26:45 The Impossible Planets That Defy Physics 31:10 Is Earth Alive? The Planetary Intelligence Theory 35:00 The Case Against a Sentient Planet 38:15 Vulcan & Nibiru: A History of Imaginary Worlds 42:00 The Uncharted Cosmos: What's Next? 🔔 If you love exploring the mysteries of the universe, be sure to LIKE this video and SUBSCRIBE for more space documentaries! KEYWORDS: Planet Nine, Planet 9, Planet X, solar system, space, astronomy, documentary, Kuiper Belt, hidden planet, monster planet, exoplanets, astrophysics, science, Mike Brown, Konstantin Batygin, Sedna, Oort Cloud, trans-Neptunian objects, TNO, hypothetical planets, cosmic mystery, space documentary, unseen world, ghost planet, Vulcan, Phaeton, Nibiru, impossible planets, weirdest planets, science documentary, universe. #planetnine #space #astronomy #documentary #planetx