Discover

µarch/April 2020 issue

Thirty years ago, the only planets we knew of were in our own solar system. Since then, we’ve discovered thousands orbiting alien suns, but most of these exoplanets are so far away that it’s difficult to study them in detail. Though we’ve learned a lot, one major question remains: How common are planets in star systems with more than one star, like the binary suns that shone on Luke Skywalker’s home world in Star Wars?