New Dwarf Planet (Maybe) Discovered

The video discusses the discovery of a new object in the Kuiper Belt, named 2014 UZ 224, which may be a dwarf planet. It meets three of the four criteria for dwarf planet classification, but its size and shape are still uncertain. Additionally, a new study suggests there are 2 trillion galaxies in the universe, ten times more than previously estimated. This revision is due to the difficulty in detecting dim and distant galaxies, and the study used a mathematical model to account for these challenges.

What is the significance of the newly discovered object 2014 UZ 224 in relation to Planet 9?

What challenges do astronomers face when counting galaxies in the observable universe?