The planet is Pluto
there are none, if you're not counting Pluto as a planet.
All the outer planets probably have solid cores. However, they do not havewhat we call a solid surface.Incidentally, there are only four outer planets altogether.There are only 4 "outer planets". They do not have a solid surface.
Neptune doesn't have an outer core. The only core Neptune has is the molten inner core in the middle of the planet. Neptune is a gas giant, which means it does not have a solid surface.
Yes it is every other outer planet is made of gas but some believe that in the center of Jupiter lies a rocky core.
Ours - Earth.
Venus is a solid planet, only the surface is thick with gasses.
Jupiter has no surface, since it is a gas planet. It's only made out of gas which are 90% hidrogen and 10% helium.
Eris is an OUTER planet. The only inner planets are mercury, venus, earth and mars. An outer planet is not related to the size of the planet but rather the distance from the sun.
The terms "outer planet" and "inner planet" are only used for planets. Pluto is not a planet, and it orbits beyond the outer planets.
Uranus is the only outer planet (and only planet in our solar system) that rotates on its side.
No. Earth is the only planet known to have any sort of life. Neptune is a gas planet, so it has no solid surface for anything to grow on.
No. Jupiter is a gas planet. It has no definite surface. The only solid portion is its core, deep within the planet under enormous heat and pressure.