... Credit Copyright: The MACHO Collaboration Explanation: If a star in this photograph twinkled slightly, would anyone notice? Would anyone care? ... The specific type of sparkling of the SMC star in the above cross-hairs clearly indicated a multiple-star microlensing event was in progress. Microlensing is a rare phenomena where gravity itself deflects light so prominently that background sources might appear to have many images and appear many times their normal brightness. ...