Penn State and UC Berkeley astronomer Jason Wright has been fixed on solving the enduring mystery of star KIC 846285 (but informally called "Tabby's Star" or "Boyajian's Star") located deep in an outer spiral arm of our Milky Way galaxy, some 1,480 light-years from Earth. This strange object is acting in ways the world's astronomy community has never seen before, defying all known explanations. At random intervals, its light dims by as much as 22 percent, and appears to have gotten dramatically darker over the past century.
Since August 2016, Wright has rounded up and analyzed some of the most common explanations from being an artifact of the instruments, to a solar system cloud, a comet swarm, the interstellar medium or Bok globules, to black holes. Read all of Wright's possible scenarios in at his blog, AstroWright.
The image at the top of the page is an artist’s impression of a Dyson Swarm (Dyson Sphere) – a megastructure made by a super-advanced civilization that completely surrounds a star and harnesses its power, proposed by Princeton physicist Freeman Dyson.