The thing is some people want a planet to be named before then so they search while the majority of the astronomers want to find a earth like planet so we can occupy them and continue our lives, some do it map the universe
A planet axis is described as any other axis just with a planet spinning around it.
the planet which completes its journey first is mercury i think
Revolution.
Neither -- the Moon is technically a satellite. It is in orbit around a planet. That planet orbits around a star. That star is one of billions of other stars which form a galaxy.
our planet earth has its own theory.... base on my scientific search, our planet started when the matter of the universe explode... and the left particles... started to grow with the help or the other elements of matter in the universe...
Mercury travels around the sun faster than any other planet (88 Earth days) because it is the closest planet to the sun.
Well, for us humans, the most important planet is definitely planet Earth. Should there be any living beings on some of the other planets, then they may have a different opinion.
It rotates and revolves around the Sun like any other planet
It is important in case there is life beyond Earth.
No. You can search in other places in our solar system such as comments and asteroids
Among other things, you can find photographs of planet Uranus by doing a search on Google Images.
Mercury completes its orbit around the Sun faster than any other planet in our solar system.