Researchers find possible first observational clue for mysterious Planet Nine

Researchers find possible first observational clue for mysterious Planet Nine

Some researchers believe the way certain trans-Neptunian objects are arranged and tilted in their orbits suggests an undiscovered planet.

First Possible Evidence Of Planet Nine Found In Infrared Data

Software flagged 13 candidate pairs of infrared sources. After a manual check, only one survived. It had shifted 47.5 arcminutes across the sky in 23 years,

We may have found the first direct evidence of a ninth major planet in the Solar System | BBC Sky at Night Magazine

Planet 9 is the hypothetical ninth planet in our Solar System. Has it finally been found using IRAS and AKARI mission data?