Thirty-five years ago, a scene in the first "Star Wars" film captivated movie-goers: Luke Skywalker peering across the landscape of Tatooine - a desert planet dominated by a pair of setting suns.
This week, reality trumped (science) fiction with an image even more enthralling: two amateur astronomers poring through data from deep, distant skies and discovering a planet with four suns.
NASA's website calls the phenomenon a circumbinary planet, or a planet that orbits two suns.