Big Bang Day, observed on March 21, provides an opportunity to explore the scientific history and technological progress associated with humanity’s understanding of the universe. The Education aspect encourages curiosity about cosmology, astronomy, and the evidence scientists use to study cosmic origins. Its Historical dimension reflects the development of scientific ideas about the early universe and the observations that transformed modern cosmology. Technology has played an important role in this exploration, from powerful telescopes to sophisticated instruments that examine distant galaxies and cosmic radiation. Across the United States, the occasion can inspire learners to investigate the universe’s evolution, appreciate scientific discovery, and consider the remarkable technologies that expand humanity’s view of cosmic history.