Astronomers have for the first time discovered two alien planets whirling around a pair of stars: a complete solar system with twin suns just like Luke Skywalker's fictional home world Tatooine. Most stars like our sun are not singletons, but rather come in pairs that orbit each other.

In The Astrophysical Journal Letters, Avi Loeb, Frank B. Baird Jr. Professor of Science at Harvard, and Amir Siraj ’21, an astrophysics concentrator, theorize that the solar system originally had two suns instead of one, and if true that could have far-reaching implications for the origins of a dense cloud that surrounds the system and a possible ninth planet.