Tiny Sky Patch Reveals a Universe of Galaxies, Thanks to Hubble
In December 1995, the Hubble Space Telescope spent ten days staring at a tiny, seemingly empty patch near the Big Dipper to avoid foreground clutter. The resulting Hubble Deep Field exposed about 3,000 galaxies in that minute patch, turning emptiness into a crowded view of the cosmos and shaping our understanding of galaxy formation and the scale of the universe.