How would scientists, governments, but also ordinary people on this world react if it was certain that the first alien visitors are at our doorstep? As much as we wish for contact with an alien race, there are still concerns. What if the alien visitors are not friendly? Thoughts like these occurred to scientists who were observing a thing in space and came across hints that the object could be a spaceship – but no one responded to the many radio messages. Instead, the part flew past Earth on strange lines, turned around, and then came back.