Question

how many planets are there in our solar system before and now

Answer 1

There are eight planets in our solar system:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.


First Pluto was also considered as a planet but when scientist researched it was known that Pluto is not a planet as it is not having its own orbit..

Answer 2

before there were 9 planets :- Mercury, Venus, Earth , Mars, Jupiter, Saturn, Uranus, Neptune, Pluto. now scientists declare that Pluto is not a plant and now there are 8 planets