Kevin discusses the interstellar object known as "Oumuamua" with Professor Avi Loeb. Loeb has studied the object, which passed from another solar system through ours in 2017 and believes it is likely not a natural formation. He explains how it might have been a solar sail, or the piece of a spaceship that was powered by light. He also discusses why most scientists in this field do their best to disprove the possibility of aliens!!