The Singularity on Instagram: "The Ton 618 black hole is one of the most massive known black holes in the universe, and its ultra-dense, high-gravity structure inspires powerful cosmic T-shirt designs. Ton 618 is a supermassive black hole with a mind-blowing mass billions of times greater than the Sun, creating extreme gravity, a glowing accretion disk, and an intense event horizon that bends light and warps space-time. A Ton 618 black hole shirt captures this cosmic energy, gravitational force,