Planet 9 from Outer Space

The video discusses the potential existence of a ninth planet in our solar system, based on peculiar orbits of objects in the Kuiper Belt. Researchers from Caltech propose that a planet, ten times the mass of Earth, could explain these orbits. The video outlines the challenges in directly observing this planet due to its distance and dimness, and suggests testing the hypothesis by finding mirror-image asteroids. This method mirrors how Neptune was discovered in the 1840s. The video concludes with a call to support Scishow and subscribe for updates.

What recent astronomical discovery has sparked excitement among scientists?

What peculiar pattern has been observed in the orbits of distant Kuiper Belt objects?

What is the proposed mass and distance of the hypothesized 9th planet from the Sun?

How do astronomers plan to find evidence of the 9th planet?

What historical event is referenced as a method for finding the new planet?