According to the French National Center for Scientific Research (CNRS), the Big Bang was not an explosion in the traditional sense, despite its name suggesting otherwise. This concept may seem surprising, as the image of a massive cosmic explosion has long been part of the public imagination. In reality, the Big Bang refers to the birth of space itself, which has been expanding uniformly since an initial dense and hot state. Unlike an explosion that occurs within a pre-existing space, the Big Bang created space, and the universe has no central point from which everything originated. The universe's expansion can be visualized like a balloon being inflated—each point on its surface moves away from all the others, but no single point is the center. This expansion is supported by observations of distant galaxies moving away from us, a phenomenon known as the redshift. However, this expansion does not affect structures held together by gravity, such as the Milky Way or the Solar System. The term "Big Bang" was actually coined in 1949 by British astrophysicist Fred Hoyle, who used it mockingly to describe the theory of the universe's origin proposed by the abbé Georges Lemaître. Despite its origins as a term of derision, it has since become the widely accepted name for the event that marked the beginning of the universe. Understanding the Big Bang requires thinking beyond our everyday experiences. Our brains are accustomed to imagining objects moving within a fixed space, but the Big Bang describes a universe that has no center, no edge, and no pre-existing void. The theoretical foundation for this understanding comes from Einstein's theory of general relativity, which explains how the universe's expansion is influenced by the matter and energy it contains. Depending on the balance of forces, the universe could either continue expanding indefinitely, leading to a "Big Rip" scenario, or eventually contract in a "Big Crunch." The expansion of the universe is not just a theoretical idea—it is supported by direct observations of distant galaxies. The farther a galaxy is from us, the faster it appears to be moving away, a phenomenon that has been a key piece of evidence for the universe's expansion. This movement implies that the universe was once denser and hotter, a state now referred to as the Big Bang. While the expansion is well-established, the exact rate of this expansion remains an active area of research. Recent studies have even suggested that the expansion may be slowing down, challenging previous assumptions about dark energy, the mysterious force thought to drive the universe's expansion. Importantly, the expansion of space does not affect structures like our galaxy or the Solar System, which are held together by strong gravitational forces. It is only on a much larger scale—between distant galaxy clusters—that the expansion becomes noticeable. This realization shifts our perspective on our place in the universe. We are not simply observers of an event that happened far away in the past; instead, we are part of the very fabric of space that originated in the Big Bang. In a sense, we are literally within the place where everything began, as that point was all the existing space at the time. This understanding reminds us that we are not on the sidelines of the universe's history, but deeply entwined in its ongoing story.