Look Into History on Instagram: "Via: @skyboundcuriosity Stephenson 2-18 (also known as St2-18) is one of the largest stars ever discovered 🌌🔥 Located about 19,000 light-years away in the constellation Scutum, this colossal red supergiant has a radius roughly 2,150 times that of our Sun. To put that in perspective if it were placed at the center of our solar system, its surface would extend beyond the orbit of Saturn. Despite its enormous size, Stephenson 2-18 is relatively cool, with a surfac