planet X it is......
It is difficult to determine the exact number of unnamed planets as new discoveries are constantly being made in our universe. However, there are estimated to be billions of planets in our Milky Way galaxy alone, with many not yet identified or named.
Yes.
There are many other planets in many other galaxies.
We don't know about any other other place, besides Earth, that harbors life. But many scientists think that there is life on other planets.
No, there is no oxygen on any other planet other than Earth because there is no planet life on the other planets.
the sun is bigger than any other planets because millions of years ago meteorites smashed together to make the sun and to any other planets that did not happen
No
Earth, Venus, and Mercury are also inner planets.
Other than the Earth, no life has been found on any of the other planets. We are still searching.
Over 900 planets have been discovered orbiting other stars. These are called exoplanets.
No one actually found any human life on any other planets yet, but there is known to be some plant life out on mars.
Astronomers have found Earth-sized planets in other solar systems.