Much like people, some stars live in pairs .. except their partnerships may persist for many millions or billions of yea .. talk about long-term relationships .. a recent study in science demonstrates that high-mass stars are more often found in partnerships rather than alone. .. these partnered O type stars possess about 15 times more mass than our sun and shine up to a million times brighter .. the european southern observatory’s very large telescope has found that a surprising three quarters of these stars have nearby companions. .. astronomers have long debated how many stars live out solitary lives versus existing in binary systems (two stars revolving around each other in close orbits) .. with the discovery of these new partner stars, astronomers once again have to reevaluate their contribution to galactic evolution..