Veritasium
Does Planet 9 Exist? (2019x24)
Ημερομηνία προβολής: Σεπ 13, 2019
A planet has been predicted to orbit the sun with a period of 10,000 years, a mass 5x that of Earth on a highly elliptical and inclined orbit. What evidence supports the existence of such a strange object at the edge of our solar system?
- Πρώτη προβολή: Αυγ 2010
- Επεισόδια: 394
- Ακόλουθοι: 1