Well, there used to be 9 but now Pluto isn't a planet anymore so now there's 8 planets in the sky.
Just a minor correction - there are 8 planets in our solar system (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus & Neptune), but in SPACE there are billions - nobody knows how many.
No. We know what the stars are. They are not planets. They are distant suns, many of which do have undiscovered planets.
planets stay in the sky due to the pull of gravity
There are to many stars in the sky ! you can't count them . only godcan
You can't
Maybe because if it's not, all the planets or many of the planets/solar systems/parts/the universe will be in jumble/disarray
In our solar system, the three planets that are generally visible to the naked eye in the night sky are Venus, Mars, and Jupiter. These planets can often be seen without the aid of a telescope or binoculars.
Because stars not like planets revolve and stars last at the night sky for many many years even at your lifetime.
The planets shine because they reflect sunlight.
The planets most certainly ARE visible in the northern hemisphere.
because some of the planets reflect lights from the sun like Venus.
Galaxy
Ancients distinguished between planets and stars in the night sky by observing that planets move relative to the fixed background of stars, while stars maintain their positions.