The Hubble Constant

The Hubble Constant is a number that describes how fast the universe is expanding. It measures the rate at which galaxies move away from us, indicating that the farther a galaxy is, the faster it seems to recede. This relationship helps astronomers estimate the age of the universe and understand its structure. Essentially, the Hubble Constant serves as a key to unlock knowledge about the cosmos, revealing how galaxies form and interact over vast distances and time. It’s a fundamental aspect of cosmology, the study of the universe’s origins and evolution.