The Ice Giants.
Astronomers
The outer planets are Gas Giants, also known as Jovian planets.
Jovian planets
The inner planets are all rocky planets, whereas the outer planets are gas giants. Pluto is the exception. The outer planets also make 99% of our planets and are outside the asteroid belt.
its not different at all they are just outer planets
the four outer planets of this solar system are as followed. jupiter, satern, uranus, and neptune.
Voyager II is the first successful space probe that reached the outer planets or Jovian Planets. It is in the rule of probes that they should not reach the outer planets because it is too far and their probes might malfunction. But this Voyager II probe had a successful flight to the outer planets.
The outer planets are larger.
The inner planets are called, "Terran" planets after the Latin name for Earth: 'Terra'. The outer planets are called, "Jovian" planets after the name Jupiter. Jupiter??? Yeah, the Greek God Jupiter was called, "Jove" in Latin, hence 'Jovian'.
The outer planets are the planets that are made of gas. Each of the outer planets are mad of gas and can not hold life.
What the history about the outer planets?
These four planets are known as the 'Gas Giant' planets.