Five years ago today, our New Horizons mission reached Pluto. The spacecraft revealed that what we once knew only as a tiny dot is a complex and beautiful world: solarsystem.nasa.gov/pluto | NASA Solar System Exploration

Where were you when New Horizons beamed back those first close-up views of Pluto? The historic day-long encounter with a dwarf planet was decades in the making… and well worth the wait! | NASA 360