A mainstream astronomer says on Reddit that Oumuamua is not your normal space rock. "Astronomer here! I will never say this lightly, but we are, swear to God, actually discussing with some seriousness right now what are the odds that this was actually a spaceship. Which I 100% assure you has never happened before in my memory with seriousness."
Thanks to: https://helenastales.weebly.com