Apart from Earth, there are no other "known" planets with an ocean.
However, there is a good chance than a moon of Jupiter - Europa may have an ocean under it's crust, and Titan - a moon of Saturn - HAS an ocean of ... methane.
There are eight planets and five dwarf planets in our solar system.
Other planets other than earth is put in the solar system for humans to explore and do researches on them.
We have two such planets in the solar system, which are Mercury and Venus. There are also several other planets that have no oceans but which are cold.
No, the planets after Pluto are still within our solar system. After Pluto, there is Eris, Haumea, Makemake, and several other dwarf planets and minor planets that are part of our solar system. Beyond these, there is the Kuiper Belt and the Oort Cloud which are also part of our solar system.
Planets outside our solar system are called exoplanets. Thousands of exoplanets have been discovered orbiting other stars in the Milky Way galaxy. They come in a variety of sizes and compositions, and many are quite different from the planets in our own solar system.
They could, but as of now, no astronauts have travelled to any other planets in the solar system.
The atom and the solar system are not equal. The solar system contains the sun and the other planets.
Actually, there are 18 known planets in our solar system, as well as two known protoplanets. For a complete list of objects in the solar system, see the related links.
Planets have no purpose. They just "are".
9 P in the S S = 9 Planets in the Solar System
There are humans.
planets