I think something like that would be cool too, but, I think this is more of an amazing story from the standpoint of how some scientist mentioned a possibility as a longshot "what the heck" type of statement, which was then twisted and promoted by "click-bait" type yahoo articles to get user hits by insinuating it actually was alien technology, even when the original scientist find the story's runaway status laughable. This story has been going on for a while, and doesn't seem to die.
Me, personally?
I think we are watching actual byproduct of the death star assault in the original start wars movie.
The numerous fighters would have a dimming effect. It was a long time ago in a galaxy far far away. If we hear a "yee haw" from outerspace and see a big flash, then we know luke and han were successful.
Others suggest a star surrounded by bigfoots, which is dimming the light, however, that's ridiculous: