Artist's concept of a Dyson Sphere. Photo credit: Kevin M. Gill
The star called KIC 8463852 can only be seen by us from light curves. Scientists noticed that there were strange structures that kept blocking out the light and it has caused many people to speculate as to what it may be. Many people believe that this alien mega structure is potentially a Dyson Sphere, an enormous group of solar panels orbiting a star to harvest its energy. However, research has shown that some stars do not have uniform brightness due to the fact that they are irregularly shaped, providing an alternative explanation that does not involve E.T.
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http://www.techinsider.io/alien-megastructure-explained-oblate-star-2015-10