>>8768470It's gravity is only 30x our sun's. It's just really big in size.
Stars are in a constant struggle between the energy of their fusion reaction trying to expand, and the their powerful gravity squeezing them together. They're like a bomb exploding in super slow motion.
Over time energy(mass) is lost and the gravity becomes weaker. Gravity starts losing the fight and the star expands. Eventually gravity loses the battle completely and can no longer contain the fusion reaction, at which point the star explodes into a supernova.
