The biggest thing in the world is the universe itself. The universe encompasses everything that exists, including all galaxies, stars, planets, and even the space between them. It is so vast that it is difficult to comprehend its size. Scientists estimate that the observable universe is about 93 billion light-years in diameter. This means that light, which travels at about 186,282 miles per second, would take 93 billion years to cross from one end to the other. The universe is constantly expanding, making it even larger over time. So, when we talk about the biggest thing in the world, the universe is the ultimate answer.
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