Hubble Parameter

The Hubble Parameter describes how quickly the universe is expanding at any given moment. It relates the speed at which galaxies are moving away from us to their distance, indicating that farther galaxies are receding faster. Essentially, it measures the rate of cosmic expansion, helping scientists understand the universe’s age, size, and the forces influencing its growth. Think of it as a "growth rate" for the universe, similar to how the speed of a balloon’s inflation tells us how quickly it’s expanding. The Hubble Parameter is central to cosmology and our understanding of the universe’s evolution.