NASA's New Horizons Probe Phones Home After Pluto Flyby

Signals from a spacecraft 3 billion miles away swept over Earth on Tuesday, confirming that NASA's New Horizons probe survived its history-making flyby of Pluto.
Mission operations manager Alice Bowman declared We are in lock with telemetry with the spacecraft."
The radio signals were received four and a half hours after they were sent out at the speed of light, and a full 13 hours after New Horizons made its close pass. But they electrified hundreds of VIPs, journalists and Pluto fans as if the main event had just happened.