<i>The phenomenon that lead to this odd flux observation is more interesting than hypothetical alien megastructures.</i><p>Discovering a previously unknown natural phenomenon would indeed by insanely cool, and I would want to know all about it in as many frequency bands as possible.<p>But alien megastructures are just about the most interesting thing I can think of short of proof that we live in a hologram, or a simulation, or some new and robust fundamental theory of matter.