Explanation

According to the International Astronomical Union, Pluto is still not an official planet in our solar system.

Pluto was first discovered by a young research assistant Clyde Tombaugh in 1930.

Pluto was demoted to dwarf planet status in 2006.

Additional Information

These are the 8 planets

1. Mercury

2. Venus

3. Earth

4. Mars

5. Jupiter

6. Saturn

7. Uranus

8. Neptune