This illustration depicts a hypothetical uneven ring of dust orbiting KIC 8462852, also known as Boyajian’s Star or Tabby's Star. | NASA/JPL-Caltech

Space Dust — Not an Alien Megastructure — Explains Odd Behavior of Tabby’s Star

New data on the most mysterious star in the sky, KIC 8462852, suggests its celestial twinkle is caused by dust rather than orbiting planets — or aliens.

LSU Astronomer Tabetha Boyajian (center) and her students and research staff. (Left to right) Robert Parks, undergraduate student Rory Bentley, Assistant Professor Tabetha Boyajian, Ph.D. candidate Tyler Ellis, undergrad Katie Nugent, Professor Geoff Clayton, and graduate student Emily Safron. | LSU
One of the many robotic telescopes part of the Las Cumbres Observatory used to observe Tabby's Star | LSU