About 13.8 billion years ago, the origin of the universe began with the Big Bang. Scientists say all space, time, matter, and energy emerged from a tiny, dense point. Today, the universe is still expanding. Data from Hubble and Planck missions confirms this. Galaxies move away as cosmic expansion stretches space. The Hubble constant near 70 km/s/Mpc measures this growth. At vast distances, expansion appears faster than light because space itself expands. The universe now spans about 93 billion light-years. Modern cosmology, Einstein’s relativity, and dark energy research continue to explain how the universe began and evolves today.
