well their all round, they are all in space, and they all circle the sun
and i think most of them have moons
The planets of our solar system are most definitely NOT all the same size.
there are no inner gas planets only outer gas planets but they are the same because they all have rings, they are all made of gas.
all planets.
Do all planets and satellites lie on the same gravitational layer?
In all probability, all the planets are about the same age. They formed around the same time as all of the other planets give or take a few million years.
because there outer planets
No.
NO
No
No. All of the outer planets, (unincluding the dwarf planet Pluto) are all made of gas, and far larger than the inner planets.
All of the planets are in the same atmosphere. All of the planets are unique. All of the planets are considered planets. All of the planets have moons. All of the planets are named after a mythical person or thing.
All planets (in our solar system) have the same sun. All the planets rotate around the same sun that Earth rotates around.