Luke Skywalker would likely feel at home on a number of real-life planets.
Giant, rocky masses orbiting two suns have a place outside of Hollywood, according to a pair of researchers from the University of Utah.
The study hasn't been published yet, but an early version, called "Planet Formation Around Binary Stars: Tatooine made easy," is available online.
"Tatooine sunsets may be common after all," the study from U. astrophysicists and the Smithsonian Astrophysical Observatory states. It suggests planets "are as prevalent around binaries as around single stars," like Earth's own sun.
Previously, the only planets believed to circle such binary stars were giant gassy versions with no capacity for life.