That interstellar asteroid probably came from a solar system with two suns

Remember the interstellar asteroid that zipped through our solar system last year? It likely came from a very alien place. 

According to a new study, the asteroid, named 'Oumuamua, probably came from a solar system with two stars.

(Perhaps the best analog for this kind of binary system is actually in fiction. In Star Wars, Luke Skywalker's home planet of Tatooine orbits two stars, or suns. A star is a "sun" if it's the center of a planetary system.)

Researchers have some good reasons for thinking that 'Oumuamua — which clocks in at an impressive 1,312 feet long — came to our solar system by way of a binary system.  Read more...