We still don't know why 'alien megastructure' star is dimming
 

Astronomers' favorite mysterious stellar object, which may or may not be surrounded by an "alien megastructure", remains unexplained. A reason for the flickering light emitted by the star known as KIC 8462852 continues to evade the scientific communi...

https://www.engadget.com/2016/08/08/...ar-is-dimming/