Discover Stephenson 2-18, the largest star ever discovered! 🌟 This is Earth compared to our Sun - massive, right? But wait till you see Stephenson 2-18, a red supergiant located 19,000 light-years away in the constellation Scutum. If you replaced our Sun with Stephenson 2-18, this cosmic giant would engulf Mercury, Venus, Earth, Mars, Jupiter, Saturn, and reach beyond the orbit of Uranus! With a radius nearly 2,150 times larger than our Sun, it would take a commercial jet over 500 years just to fly around it once. Stephenson 2-18, biggest star, largest star ever discovered, space comparison, Earth vs Sun, solar system size, red supergiant, astronomy, space facts, universe scale, constellation Scutum, cosmic giants, star size comparison, space education #space #stephenson #biggeststar #astronomy #astrophysics #sizecomparison #spacex #nasa