Aliens have been talked about since

Aliens have been talked about since the last century, and their existence is not just a fantasy. It's the desire to explore the world beyond our own planet.But the debate whether they exist also stems from real cases.So is the existence of aliens a matter of wild imagination or a matter of real life.It's time for us to find out.The debate about aliens has been particularly heated in the last century, with astronauts witnessing , alien abductions, there are also a series of films about aliens that have made the word alien hot.So whether aliens exist or not, people hold different views, some people think aliens are just our unrealistic fantasy, but I think aliens exist, and I will use some real events and scientific theories to prove my point of view.