NASA’s New Horizons spacecraft has been traveling for nine and a half years, speeding ever closer to our solar system’s last major unexplored world: Pluto. For the first time ever, scientists are getting close-up views of the most popular dwarf planet, and today is the pinnacle of the whole 3-billion-mile (5 billion kilometers) trip. Celebrate the closest approach with Astronomy and Discover magazines as we bring you all the latest information live right here today and tomorrow.
Live coverage: New Horizons’ historic Pluto flyby
Twenty-five years in the making, this close-up examination of the Pluto system represents the capstone of the first era of planet reconnaissance.
