How do the biggest stars in the universe grow so large? Some stars in the universe grow to 300 times larger our own sun. But how do they get so big, and how do they sustain their mass? Astrobitica August 21, 2025 (Last updated: August 21, 2025) 1 minute read Some stars in the universe grow to 300 times larger our own sun. But how do they get so big, and how do they sustain their mass? About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: Dark matter in gas giants could collapse into detectable black holes, model suggestsNext: Astronomers discover strange new type of supernova: ‘This is the first time we have seen a star that was essentially stripped to the bone’