🚨Earth is incredibly small next to this star. If Earth were a nickel, this red hypergiant star would be about the size of downtown Chicago. Stephenson 2-18 has a diameter over 2,100 times that of the Sun—big enough to swallow all the planets in the solar system and still have room to spare. You could fit Earth billions of times inside it. Calling it a "star" feels like calling a black hole a "pothole." Source: Konstructivizm / NASA