Hubble's Law is the observation that galaxies are receding from us at speeds proportional to their distances, providing evidence for the expansion of the universe. In poetry, Hubble's Law can symbolize the inevitability of change, the passage of time, and the vastness of the cosmos, inviting reflections on the nature of existence and the human experience of growth and transformation. This concept encourages poets to explore the connections between the universe's expansion and the personal journeys of individuals, illustrating how both are marked by movement, evolution, and the pursuit of understanding.

Hubble's Law describes the observation that galaxies are moving away from us, with their speed proportional to their distance, indicating that the universe is expanding. This law is a cornerstone of modern cosmology, providing evidence for the Big Bang theory and leading to the concept of an expanding universe. Hubble's Law is often expressed in terms of the Hubble constant, which quantifies the rate of expansion. Understanding this law involves concepts like redshift and cosmic background radiation, which further illuminate the universe's history.