An article accepted for publication in “The Astrophysical Journal” reports a study on the star R136a1, perhaps the most massive known. A team of researchers pushed the Zorro instrument mounted on the Gemini South telescope to its limits to observe R136a1, or RMC 136a1. The results suggest that it’s less massive than previously estimated, as it was thought to be even more than 300 times the Sun’s mass. It remains a colossus given that the new estimate peaks in probability at 196 times the Sun’s mass. Two “siblings” may also be less massive than previously estimated, as this study estimates the mass of the star R136a2 to be about 151 times the Sun’s and the mass of the star R136a3 to about 155 times the Sun’s. Understanding these huge stars better helps to better predict their end and the chemical elements that will be created at that stage.