The International Space Station lost communication with Earth on Tuesday morning due to a malfunction, NASA announced:
This morning, at approximately 9:45 a.m. EST, the International Space Station experienced a loss of communication with the ground. At that time, flight controllers in Houston were updating the software onboard the station’s flight computers when one of the station’s data relay systems malfunctioned. The primary computer that controls critical station functions defaulted to a backup computer, but was not allowing the station to communicate with NASA’s Tracking and Data Relay Satellites. Mission Control Houston was able to communicate with the crew as the space station flew over Russian ground stations before 11:00 a.m. EST and instructed the crew to connect a backup computer to begin the process of restoring communications. Expedition 34 Commander Kevin Ford reported that the station’s status was fine and that the crew was doing well. More details will follow as events warrant.
Communications have been restored with the space station effective 11:34AM Central.— Johnson Space Center (@NASA_Johnson) February 19, 2013