Dead Sea Scrolls found in a cave near Jerusalem revealed the Earth was visited with extra-terrestrial visitors. Most religions of the world agree in the concept of Sons of Light and Sons of Darkness, good angels and evil ones, good aliens and bad.
My research has indicated there are various groups of aliens with different intentions, their motivations may be very different and they often appear to be fighting one another. "The Zadokite Document," discovered fifty years ago in an old synagogue in Cairo, confirms Genesis and mentions the landing of Spacemen, their giant offspring and immorality.
"Because they walked in the stubbornness of their hearts, the Watchers of heaven fell, yea, they were caught thereby because they kept not the Commandments of God. So too their Sons whose height was like the lofty cedars and whose bodies were as mountains. They also fell." The Scriptures of the Dead Sea Sect by Theodore H. Gaster.
Their visits have often been interpreted in religious terms, but the data is essentially truthful and often the best we have. Biologists search for protoplasm in ancient primordial soup. Archaeologists seek man's origin in the mud. I search with shining eyes for our home in the stars.