Our Sun is a significant exception to the rule that most stars in our galaxy reside in pairs. Scientists are now discovering evidence that suggests it might have had a partner in the past. I want to know where it went.
Our Sun is somewhat of a solitary wanderer. It travels around the galaxy around once every 230 million years on our own, orbiting in one of the Milky Way’s spiral arms. Proxima Centauri, the star closest to our Sun, is 4.2 light-years away, so far away that it would take almost 7,000 years for even the fastest spaceship ever constructed to get there.
