NASA’s New Horizons Spacecraft Signals Successful Flyby of Ultima Thule, the Most Distant Object Ever Visited - The New York Times

NASA’s New Horizons Spacecraft Signals Successful Flyby of Ultima Thule, the Most Distant Object Ever Visited  The New York Times

For people working on the flyby of Ultima Thule, it all comes down to a plan years in the making that must be executed some four billion miles away.