In 1929, American astronomer Edwin Hubble made a groundbreaking discovery: the universe is expanding. Using his telescope at Mount Wilson Observatory in California, he observed that distant galaxies are moving away from us, and the faster they are moving, the farther away they are. This discovery shattered the belief that the universe was static and unchanging. Hubble’s discovery led to a new field of cosmology, the study of the origin, evolution, and structure of the universe. One of the most important questions that cosmologists have been trying to answer ever since is: what is the rate of expansion of the universe? This rate is known as the Hubble constant. The Hubble constant is a fundamental parameter of the universe. It describes how fast the universe is expanding, and it is crucial for understanding the age, size, and future of the universe. A precise measurement of the Hubble constant is essential for testing various cosmological models and theories. However, measuring the Hub...
A captivating junction where scientific curiosity meets explanation