The Arcturians have spaceships that are of the most advanced Technology in the Galaxy.
We may read some info about the Arcturians here.(They seem to be a civilization in the 1st, 2nd, 3rd and 4th aether, or 4th, 5th, 6th and 7th density physical reality)
The web is full of sites and videos with messages supposed to be from the Arcturians. As it is the case with all the allien races, these sites and messages are not always genuine.
I myself am not always in the position to discriminate always the truth from the lies and misinformation. One should always be hesitating and cautious, and accept only those messages that resonate with his inner consciousness.
In the next blog, there are many such messages, that although I am not sure that are really from the Arcturians, they contain valuable insights for the personal and existential human life.