- Tabby's star, alien megastructures, and planet gobbling: A strange new theory may finally solve the mystery of an "alien megastructure" that has confounded scientists for months â Quartz https://qz.com/884106/tabbys-star-alien-megastructures-and-planet-gobbling-a-strange-new-theory-may-finally-solve-the-mystery-of-an-alien-megastructure-that-has-confounded-scientists-for-months/ 4 comments aliens