Do aliens exist?

Let’s think logically.

Do aliens exist? If so, where are they, how long have they been existing, are they humanoid, and etc? I personally feel that aliens are real and they do exist. Scientist says that the universe expands rapidly, and there are billions of galaxies that are out there why wouldn’t they exist? We haven’t even discovered and explored all of Earth’s water and space is even more complex than Earth’s…