We are not alone in the Universe. The Ancients were aware of this via direct contact with the "Gods" and the knowledge has been preserved within the many various ancient cultures, Sumerian, Egyptian, Vedic, Mayan, Even within Christian texts.
During the Modern chapter of our history, via the Ruling Elite & the Governments of the World, this information has been - to their best efforts - concealed and the truth of humanities origins, and of contact with what are called extraterrestrial beings, entities, technology, etc. kept from the masses.
Ignorance is a choice. Wake up. Evolve.