Did the Sun Pull a Rogue Planet into the Solar System? [10:19]

A new study has proposed the existence of a hidden solar system planet candidate that is smaller and closer to Earth than the infamous, hypothetical Planet X. This new world, dubbed "Planet Y," could be around the same size as Earth and may exist alongside another popular Planet Nine candidate; potentially bringing our solar system's planetary tally to 10, if both can be confirmed. Did the Sun Pull a Rogue Planet into the Solar System? | 10:19 Territory | 123K subscribers | 146,224 views | September 21, 2026 Narrated by Mathew McQuinn