Planet X and Solar System Discoveries

The video explores the history of planetary discovery, starting with the six classical planets known to ancient sky gazers. The invention of the telescope led to the discovery of Uranus in 1781, and later Neptune, due to its gravitational effects on Uranus. Scientists have long speculated about the existence of another planet, Planet X, which is now supported by indirect evidence. This evidence includes the unique orbital clustering of six small solar system objects, suggesting the influence of a large, distant planet. Planet X is hypothesized to be similar in size to Neptune, with a mass ten times that of Earth, and an orbit taking 15,000 years to complete. Researchers are using the Subaru telescope in Hawaii to search for visual proof of Planet X, which could become the ninth planet in our solar system.

Which planet was discovered due to discrepancies in Uranus's orbit?

• Saturn

• Neptune

• Jupiter

• Mars

What is the name given to the hypothetical planet that scientists believe might exist in our solar system?

• Planet X

• Planet Z

• Planet Y

• Planet W

What is the estimated mass of Planet X compared to Earth?

• Twenty times Earth's mass

• Ten times Earth's mass

• Five times Earth's mass

• Fifteen times Earth's mass

How many small solar system objects have been observed to have unique orbits possibly influenced by Planet X?

• Four

• Five

• Seven

• Six

What is the orbital period of Planet X compared to Neptune?

• 10,000 years

• 500 years

• 15,000 years

• 1,000 years

Which telescope is being used in the search for Planet X?

• Very Large Telescope

• Keck Observatory

• Subaru Telescope

• Hubble Space Telescope

What would be the significance of discovering Planet X?

• It would lead to the discovery of new galaxies.

• It would prove the existence of life on other planets.

• It would redefine our understanding of the solar system.

• It would confirm the existence of a tenth planet.