 Astronomers have captured one of the largest panoramic views of the distant universe. The field features approximately 15,000 galaxies, most of which are forming stars. Hubble is literally tracking the birth of stars over the last 11 billion years back to the cosmos' busiest star-forming period, which we think happened about 3 billion years after the Big Bang. The light from distant star-forming regions in remote galaxies started out as ultraviolet. However, the expansion of the universe has shifted the light into infrared wavelengths. By comparing images of star formation in the distant and nearby universe, astronomers gleam a better understanding of how nearby galaxies grew from small clumps of hot, young stars long ago.