3 questions, humanity may never answer

Nowadays, with all this spectacular technological development, everyting is getting easier and science is making some creditably moves, in physics, astronomy, medicine and every possible field.

Even now, with all these wonderful things that man invented, there are some questions that are not only not answered but also, we may never find how they work.

1. Do aliens really exist and if yes, how do they look like?

That is a huge concern of the astronomy and generally the whole mankind, that we might not ever find the…