As April’s total solar eclipse approaches, scientists say astrophiles are in for another cosmic treat in coming months. Dubbed by NASA as a “once-in-a-lifetime viewing opportunity,” a rare event in a star system far, far away will cause it to shine brighter than Polaris, the North Star. T Coronae Borealis, located some 3,000 light years away, is a binary system with a red giant star and a white dwarf orbiting each other, per Live Science. They are close enough that once the red giant becomes unstable from increasing temperatures, the dwarf absorbs the outer layers it sheds. This interaction ca…