CAPE CANAVERAL, Fla. -- Plumes of exhaust and smoke billow around the lightning masts on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as a United Launch Alliance Atlas V 401 rocket lifts off at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Scott Neener and Cory Huston

CAPE CANAVERAL, Fla. -- A cloud of exhaust and smoke billows past a lightning mast on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as a United Launch Alliance Atlas V 401 rocket lifts off at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Robert Murray

CAPE CANAVERAL, Fla. -- Fireworks begin on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as the engines ignite under the United Launch Alliance Atlas V 401 rocket carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. Liftoff was at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- Ice crystals sparkle in the spotlights on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as they fall away from a United Launch Alliance Atlas V 401 rocket lifting off at 8:48 p.m. EST to place NASA's Tracking and Data Relay Satellite-K, TDRS-K, in orbit. The ice forms on the rocket's fuel tank before launch, a byproduct of its super-cold propellants. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- The glare from the engines is all that's visible of a United Launch Alliance Atlas V 401 rocket as it lifts off into the night sky over Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. Liftoff with NASA's Tracking and Data Relay Satellite-K, TDRS-K, aboard was at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket streaks into the night sky over Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. Launch was at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket is poised for liftoff from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. Launch is set for 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Glenn Benson

CAPE CANAVERAL, Fla. -- NASA's Tracking and Data Relay Satellite-K, TDRS-K, sits atop a United Launch Alliance Atlas V 401 rocket on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, ready to begin its journey to orbit. Liftoff is set for 8:48 p.m. EST at the opening of a 40-minute launch window. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Rick Wetherington

CAPE CANAVERAL, Fla. -- The umbilical tower drops back from a United Launch Alliance Atlas V 401 rocket as it lifts off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. Launch, with NASA's Tracking and Data Relay Satellite-K or TDRS-K aboard, was at 8:48 p.m. EST. he TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Rick Wetherington

CAPE CANAVERAL, Fla. -- Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida comes alive as the engines ignite under the United Launch Alliance Atlas V 401 rocket, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. Liftoff was at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Don Kight

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket races to orbit from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K. Launch was at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- Plumes of exhaust and smoke build around the base of a lightning mast on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as a United Launch Alliance Atlas V 401 rocket lifts off at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida is illuminated by a United Launch Alliance Atlas V 401 rocket as it lifts off at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- The United Launch Alliance Atlas V 401 rocket carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, streaks past the Vehicle Assembly Building and Launch Complex 39 at Kennedy Space Center in Florida after launching from Space Launch Complex 41 at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray

CAPE CANAVERAL, Fla. -- The United Launch Alliance Atlas V 401 rocket carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, is no more than a pinpoint of light in the night sky, following liftoff at 8:48 p.m. EST from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- NASA's Tracking and Data Relay Satellite-K, TDRS-K, sits atop a United Launch Alliance Atlas V 401 rocket on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, ready to begin its journey to orbit. Liftoff is set for 8:48 p.m. EST at the opening of a 40-minute launch window. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Don Kight

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket roars to life on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Don Kight

CAPE CANAVERAL, Fla. -- Plumes of exhaust and smoke form around the base of a lightning mast on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as a United Launch Alliance Atlas V 401 rocket lifts off at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Don Kight

CAPE CANAVERAL, Fla. -- The engines ignite under the United Launch Alliance Atlas V 401 rocket at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. NASA's Tracking and Data Relay Satellite-K, TDRS-K, began its journey to orbit at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Don Kight

CAPE CANAVERAL, Fla. -- The umbilical tower drops back from a United Launch Alliance Atlas V 401 rocket as it lifts off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. Launch, with NASA's Tracking and Data Relay Satellite-K or TDRS-K aboard, was at 8:48 p.m. EST. he TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Robert Murray

CAPE CANAVERAL, Fla. -- The United Launch Alliance Atlas V 401 rocket carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, roars to life on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida at 8:48 p.m. EST. he TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Robert Murray

CAPE CANAVERAL, Fla. -- Pressure mounts under a United Launch Alliance Atlas V 401 rocket on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as its engines ignite, propelling it to orbit carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K. Liftoff was at 8:48 p.m. EST. he TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Rick Wetherington

CAPE CANAVERAL, Fla. -- Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida is illuminated by a United Launch Alliance Atlas V 401 rocket as it lifts off at 8:48 p.m. EST carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Don Kight

CAPE CANAVERAL, Fla. -- The umbilical tower drops away from a United Launch Alliance Atlas V 401 rocket as it lifts off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. Launch, with NASA's Tracking and Data Relay Satellite-K or TDRS-K aboard, was at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida is illuminated by a United Launch Alliance Atlas V 401 rocket as it lifts off at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Scott Neener and Cory Huston

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket streaks away from Space Launch Complex 41 into the night sky over Cape Canaveral Air Force Station in Florida, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. Launch was at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Glenn Benson

CAPE CANAVERAL, Fla. -- A rumble is heard across the Space Coast as a United Launch Alliance Atlas V 401 rocket roars off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Robert Murray

CAPE CANAVERAL, Fla. -- The engines ignite under the United Launch Alliance Atlas V 401 rocket at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. NASA's Tracking and Data Relay Satellite-K, TDRS-K, began its journey to orbit at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Robert Murray

CAPE CANAVERAL, Fla. -- The engines ignite under the United Launch Alliance Atlas V 401 rocket at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. NASA's Tracking and Data Relay Satellite-K, TDRS-K, began its journey to orbit at 8:48 p.m. EST. he TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Robert Murray

CAPE CANAVERAL, Fla. -- The United Launch Alliance Atlas V 401 rocket carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, streaks past the lighthouse on Cape Canaveral Air Force Station in Florida after launching from Space Launch Complex 41 at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Rick Wetherington

CAPE CANAVERAL, Fla. -- Plumes of exhaust and smoke form around a United Launch Alliance Atlas V 401 rocket at 8:48 p.m. EST as it lifts off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket springs to life on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Rick Wetherington

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket lifts off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket cuts its way through the night sky over Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. Launch was at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Glenn Benson

CAPE CANAVERAL, Fla. -- A brilliant flash signals engine ignition under the United Launch Alliance Atlas V 401 rocket at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. NASA's Tracking and Data Relay Satellite-K, TDRS-K, began its journey to orbit at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Robert Murray

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket rises above the lightning masts on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. Liftoff was at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- NASA's Tracking and Data Relay Satellite-K, TDRS-K, is well on its way to orbit, launching atop a United Launch Alliance Atlas V 401 rocket from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- The engines ignite under the United Launch Alliance Atlas V 401 rocket at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. NASA's Tracking and Data Relay Satellite-K, TDRS-K, began its journey to orbit at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Rick Wetherington

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket rushes past the lightning masts on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, leaving plumes of exhaust and smoke in its wake. Its payload, NASA's Tracking and Data Relay Satellite-K or TDRS-K, began its climb to orbit at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Rick Wetherington

CAPE CANAVERAL, Fla. -- NASA's Tracking and Data Relay Satellite-K, TDRS-K, begins its journey to orbit at 8:48 p.m. EST atop a United Launch Alliance Atlas V 401 rocket from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- A faint rumbling begins on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as the engines ignite beneath a United Launch Alliance Atlas V 401 rocket. Its payload, NASA's Tracking and Data Relay Satellite-K or TDRS-K, began its climb to orbit at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Rick Wetherington

CAPE CANAVERAL, Fla. -- A rumble is heard across the Space Coast as a United Launch Alliance Atlas V 401 rocket lifts off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Glenn Benson

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket races above the lightning masts on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, leaving plumes of exhaust and smoke in its wake. Its payload, NASA's Tracking and Data Relay Satellite-K or TDRS-K, began its climb to orbit at 8:48 p.m. EST. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Robert Murray

CAPE CANAVERAL, Fla. -- A cloud of exhaust and smoke forms under a United Launch Alliance Atlas V 401 rocket on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as it lifts off at 8:48 p.m. EST, carrying NASA's Tracking and Data Relay Satellite-K, TDRS-K, to orbit. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Robert Murray

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V 401 rocket hovers above the hardstand on Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as its engines ignite. Liftoff, with NASA's Tracking and Data Relay Satellite-K or TDRS-K aboard, was at 8:48 p.m. EST. he TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Tony Gray and Rick Wetherington

CAPE CANAVERAL, Fla. -- NASA's Tracking and Data Relay Satellite-K, TDRS-K, lights up the night sky as it begins its journey to orbit atop a United Launch Alliance Atlas V 401 rocket at 8:48 p.m. EST from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, visit http:__www.nasa.gov_mission_pages_tdrs_index.html. Photo credit: NASA_Scott Neener and Cory Huston

Communications, Navigation, and Network Reconfigurable Test-bed (CoNNeCT) Flight Hardware Compatibility Test Sets - Glenn Research Center and Networks Integration Management Office (NIMO) Testing for the Tracking and Data Relay Satellite System (TDRSS) - Goddard Space Flight Center Testing

Communications, Navigation, and Network Reconfigurable Test-bed (CoNNeCT) Flight Hardware Compatibility Test Sets - Glenn Research Center and Networks Integration Management Office (NIMO) Testing for the Tracking and Data Relay Satellite System (TDRSS) - Goddard Space Flight Center Testing

KENNEDY SPACE CENTER, Fla. - At Pad 36-A, Cape Canaveral Air Force Station, the equipment used to raise the Atlas II first (booster) stage into the launch tower is removed. The Atlas II will later be mated with the Tracking and Data Relay Satellite, known as TDRS-I, for launch in January 2002. The TDRS System (TDRSS) is a communication signal relay system that provides tracking and data acquisition services between low-Earth orbiting spacecraft and NASA_customer control and_or data processing facilities. The system is capable of transmitting to and receiving data from customer spacecrafts over 100 percent of their orbit (some limitations may apply depending on actual orbit). The TDRS-I provides a Ka-band service that will allow customers with extremely high data rates to be supported by the Tracking and Data Relay Satellite System (TDRSS) if they desire

KENNEDY SPACE CENTER, Fla. -- The first (booster) stage of an Atlas II rocket is moved into the launch tower at Pad 36-A, Cape Canaveral Air Force Station. It will later be mated with the Tracking and Data Relay Satellite, known as TDRS-I, for launch in January 2002. The TDRS System (TDRSS) is a communication signal relay system that provides tracking and data acquisition services between low-Earth orbiting spacecraft and NASA/customer control and/or data processing facilities. The system is capable of transmitting to and receiving data from customer spacecrafts over 100 percent of their orbit (some limitations may apply depending on actual orbit). The TDRS-I provides a Ka-band service that will allow customers with extremely high data rates to be supported by the Tracking and Data Relay Satellite System (TDRSS) if they desire

KENNEDY SPACE CENTER, Fla. -- The first (booster) stage of an Atlas II rocket arrives at Pad 36-A, Cape Canaveral Air Force Station. The segment will be lifted and raised into the launch tower where it will be mated with the Tracking and Data Relay Satellite, known as TDRS-I, for launch in January 2002. The TDRS System (TDRSS) is a communication signal relay system that provides tracking and data acquisition services between low-Earth orbiting spacecraft and NASA/customer control and/or data processing facilities. The system is capable of transmitting to and receiving data from customer spacecrafts over 100 percent of their orbit (some limitations may apply depending on actual orbit). The TDRS-I provides a Ka-band service that will allow customers with extremely high data rates to be supported by the Tracking and Data Relay Satellite System (TDRSS) if they desire

KENNEDY SPACE CENTER, FLA. - At Cape Canaveral Air Force Station, Fla., the Atlas Centaur booster segment of an Atlas II rocket is offloaded. It will be mated to the first segment on Launch Pad 36-A, CCAFS, in preparation for launch of the TDRS-I spacecraft Oct. 30. The 40-minute launch window begins at 11:19 p.m. EST. The TDRS System (TDRSS) is a communication signal relay system that provides tracking and data acquisition services between low-Earth orbiting spacecraft and NASA/customer control and/or data processing facilities. The system is capable of transmitting to and receiving data from customer spacecrafts over 100 percent of their orbit (some limitations may apply depending on actual orbit). The TDRS-I provides a Ka-band service that will allow customers with extremely high data rates to be supported by TDRSS if they desire

KENNEDY SPACE CENTER, Fla. -- The Lockheed Martin Atlas_Centaur segment of the Atlas II rocket is lowered onto the first (booster) stage of the Atlas II rocket at Launch Pad 36-A, Cape Canaveral Air Force Station. . The rocket is scheduled to launch the Tracking and Data Relay Satellite, known as TDRS-I, in January 2002. The TDRS System (TDRSS) is a communication signal relay system that provides tracking and data acquisition services between low-Earth orbiting spacecraft and NASA_customer control and_or data processing facilities. The system is capable of transmitting to and receiving data from customer spacecrafts over 100 percent of their orbit (some limitations may apply depending on actual orbit). The TDRS-I provides a Ka-band service that will allow customers with extremely high data rates to be supported by the Tracking and Data Relay Satellite System (TDRSS) if they desire.

KENNEDY SPACE CENTER, FLA. - At Cape Canaveral Air Force Station, Fla., the Atlas Centaur booster segment of an Atlas II rocket is offloaded. It will be mated to the first segment on Launch Pad 36-A, CCAFS, in preparation for launch of the TDRS-I spacecraft Oct. 30. The 40-minute launch window begins at 11:19 p.m. EST. The TDRS System (TDRSS) is a communication signal relay system that provides tracking and data acquisition services between low-Earth orbiting spacecraft and NASA/customer control and/or data processing facilities. The system is capable of transmitting to and receiving data from customer spacecrafts over 100 percent of their orbit (some limitations may apply depending on actual orbit). The TDRS-I provides a Ka-band service that will allow customers with extremely high data rates to be supported by TDRSS if they desire

KENNEDY SPACE CENTER, Fla. -- The Lockheed Martin Atlas/Centaur segment of the Atlas II rocket is lifted up the launch tower at Launch Pad 36-A, Cape Canaveral Air Force Station. The rocket is scheduled to launch the Tracking and Data Relay Satellite, known as TDRS-I, in January 2002. The TDRS System (TDRSS) is a communication signal relay system that provides tracking and data acquisition services between low-Earth orbiting spacecraft and NASA/customer control and/or data processing facilities. The system is capable of transmitting to and receiving data from customer spacecrafts over 100 percent of their orbit (some limitations may apply depending on actual orbit). The TDRS-I provides a Ka-band service that will allow customers with extremely high data rates to be supported by the Tracking and Data Relay Satellite System (TDRSS) if they desire.

Artist concept shows the Tracking and Data Relay Satellite E (TDRS-E) augmenting a sophisticated TDRS system (TDRSS) communications network after deployment during STS-43 from Atlantis, Orbiter Vehicle (OV) 104. TDRS, built by TRW, will be placed in a geosynchronous orbit and after onorbit testing, which requires several weeks, will be designated TDRS-5. The communications satellite will replace TDRS-3 at 174 degrees West longitude. The backbone of NASA's space-to-ground communications, the TDRSs have increased NASA's ability to send and receive data to spacecraft in low-earth orbit to more than 85 percent of the time. Before TDRS, NASA relied solely on a system of ground stations that permitted communications only 15 percent of the time. Increased coverage has allowed onorbit repairs, live television broadcast from space and continuous dialogues between astronaut crews and ground control during critical periods such as Space Shuttle landings.

KENNEDY SPACE CENTER, Fla. -- The Lockheed Martin Atlas/Centaur segment of the Atlas II rocket is lifted up the launch tower at Launch Pad 36-A, Cape Canaveral Air Force Station. The rocket is scheduled to launch the Tracking and Data Relay Satellite, known as TDRS-I, in January 2002. The TDRS System (TDRSS) is a communication signal relay system that provides tracking and data acquisition services between low-Earth orbiting spacecraft and NASA/customer control and/or data processing facilities. The system is capable of transmitting to and receiving data from customer spacecrafts over 100 percent of their orbit (some limitations may apply depending on actual orbit). The TDRS-I provides a Ka-band service that will allow customers with extremely high data rates to be supported by the Tracking and Data Relay Satellite System (TDRSS) if they desire.

KENNEDY SPACE CENTER, Fla. -- The first (booster) segment of a Lockheed Martin Atlas II rocket sits in the launch tower at Pad 36-A, Cape Canaveral Air Force Station, in preparation for mating with the other stages that will launch the Tracking and Data Relay Satellite, known as TDRS-I, in January 2002. The TDRS System (TDRSS) is a communication signal relay system that provides tracking and data acquisition services between low-Earth orbiting spacecraft and NASA/customer control and/or data processing facilities. The system is capable of transmitting to and receiving data from customer spacecrafts over 100 percent of their orbit (some limitations may apply depending on actual orbit). The TDRS-I provides a Ka-band service that will allow customers with extremely high data rates to be supported by the Tracking and Data Relay Satellite System (TDRSS) if they desire.

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, passes through the Launch Complex 39 area at NASA's Kennedy Space Center as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http:__www.nasa.gov_tdrs Photo credit: NASA_Glenn Benson

STS070-S-002 (May 1995) --- These five NASA astronauts are in training for the STS-70 mission aboard the Space Shuttle Discovery. Left to right are astronauts Kevin R. Kregel, Nancy J. Currie, Terence T. (Tom) Henricks, Mary Ellen Weber and Donald A. Thomas. Henricks and Kregel are commander and pilot, respectively. The other three are mission specialists. Among the tasks they are expected to perform is the deployment of another satellite in the network of the Tracking and Data Relay Satellite System (TDRSS).

CAPE CANAVERAL, Fla. – A transporter begins moving NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41, near NASA's Kennedy Space Center. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, passes through the Launch Complex 39 area and Press Site at NASA's Kennedy Space Center as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, passes through the Launch Complex 39 area and Vehicle Assembly Building at NASA's Kennedy Space Center as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, is en route to its launch site from the Astrotech payload processing facility in Titusville, Fla. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41, near NASA's Kennedy Space Center. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, is en route to its launch site from the Astrotech payload processing facility in Titusville, Fla. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41, near NASA's Kennedy Space Center. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. – NASA's Tracking and Data Relay Satellite, TDRS-K, is enclosed in its payload fairing and prepared for its move atop a transporter from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41, near NASA's Kennedy Space Center. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, is en route to its launch site from the Astrotech payload processing facility in Titusville, Fla. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41, near NASA's Kennedy Space Center. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, passes through the Launch Complex 39 area and Operations Support Building at NASA's Kennedy Space Center as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. – A transporter begins moving NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41, near NASA's Kennedy Space Center. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, passes through the Launch Complex 39 area at NASA's Kennedy Space Center as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. – NASA's Tracking and Data Relay Satellite, TDRS-K, is enclosed in its payload fairing and prepared for its move atop a transporter from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41, near NASA's Kennedy Space Center. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, enters a NASA Kennedy Space Center gate as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, passes through the Launch Complex 39 area and Vehicle Assembly Building at NASA's Kennedy Space Center as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, enters a NASA Kennedy Space Center gate as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. – NASA's Tracking and Data Relay Satellite, TDRS-K, is enclosed in its payload fairing and prepared for its move atop a transporter from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41, near NASA's Kennedy Space Center. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, passes through the Launch Complex 39 area at NASA's Kennedy Space Center as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. –NASA's Tracking and Data Relay Satellite, TDRS-K, enclosed in its payload fairing, passes through the Launch Complex 39 area and Vehicle Assembly Building at NASA's Kennedy Space Center as it travels from the Astrotech payload processing facility in Titusville, Fla., to its launch site. TDRS-K will lift off atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station's Space Launch Complex 41. The TDRS-K spacecraft is part of the next-generation series in the Tracking and Data Relay Satellite System, a constellation of space-based communication satellites providing tracking, telemetry, command and high-bandwidth data return services. For more information, go to http://www.nasa.gov/tdrs Photo credit: NASA/Glenn Benson

CAPE CANAVERAL, Fla. – The United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft to Earth orbit. Liftoff was at 9:33 p.m. EST. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http:__www.nasa.gov_tdrs To learn more about SCaN, visit: www.nasa.gov_scan Photo credit: NASA_Tony Gray and Sandy Joseph

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station's Launch Complex 41, a United Launch Alliance Atlas V with NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft atop, begins its rollout from the Vertical Integration Facility to the launch pad. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http://www.nasa.gov/tdrs To learn more about SCaN, visit: www.nasa.gov/scan Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. -- The United Launch Alliance Atlas V rocket carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, rises off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. Launch was at 9:33 p.m. EST Jan. 23 during a 40-minute launch window. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high-bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of three NASA Space Communication and Navigation SCaN networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit http:__www.nasa.gov_tdrs. To learn more about SCaN, visit www.nasa.gov_scan. Photo credit: NASA_George Roberts

CAPE CANAVERAL, Fla. -- The exhaust plume builds at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as the engines ignite under the United Launch Alliance Atlas V rocket carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, to Earth orbit. Launch was at 9:33 p.m. EST Jan. 23 during a 40-minute launch window. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high-bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of three NASA Space Communication and Navigation SCaN networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit http://www.nasa.gov/tdrs. To learn more about SCaN, visit www.nasa.gov/scan. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft to Earth orbit. Liftoff was at 9:33 p.m. EST. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http:__www.nasa.gov_tdrs To learn more about SCaN, visit: www.nasa.gov_scan Photo credit: NASA_Tony Gray and Sandy Joseph

CAPE CANAVERAL, Fla. – The dual rocket engines beneath the United Launch Alliance Atlas V are ablaze as the rocket lifts off Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, to Earth orbit. Liftoff was at 9:33 p.m. EST Jan. 23 during a 40-minute launch window. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high-bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of three NASA Space Communication and Navigation SCaN networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit http://www.nasa.gov/tdrs. To learn more about SCaN, visit www.nasa.gov/scan. Photo credit: NASA/George Roberts

CAPE CANAVERAL, Fla. -- An exhaust plume forms at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as the engines ignite under the United Launch Alliance Atlas V rocket carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, to Earth orbit. Launch was at 9:33 p.m. EST Jan. 23 during a 40-minute launch window. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high-bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of three NASA Space Communication and Navigation SCaN networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit http://www.nasa.gov/tdrs. To learn more about SCaN, visit www.nasa.gov/scan. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station's Launch Complex 41, a United Launch Alliance Atlas V with NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft atop, rolls out to the launch pad. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http://www.nasa.gov/tdrs To learn more about SCaN, visit: www.nasa.gov/scan Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. – In the Hangar AE Mission Director's Center at Cape Canaveral Air Force Station in Florida, NASA and contractor managers and engineers monitor progress of the countdown for the launch the agency's Tracking and Data Relay Satellite, or TDRS-L, spacecraft atop a United Launch Alliance Atlas V rocket. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http:__www.nasa.gov_tdrs To learn more about SCaN, visit: www.nasa.gov_scan Photo credit: NASA_Kim Shiflett

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station's Launch Complex 41, a United Launch Alliance Atlas V with NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft atop, rolls out to the launch pad. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http://www.nasa.gov/tdrs To learn more about SCaN, visit: www.nasa.gov/scan Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V rocket streaks into the night from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, to Earth orbit. Launch was at 9:33 p.m. EST Jan. 23 during a 40-minute launch window. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high-bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of three NASA Space Communication and Navigation SCaN networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit http:__www.nasa.gov_tdrs. To learn more about SCaN, visit www.nasa.gov_scan. Photo credit: NASA_Kevin O'Connell

CAPE CANAVERAL, Fla. -- The exhaust plume builds at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida following engine ignition under the United Launch Alliance Atlas V rocket carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, to Earth orbit. Launch was at 9:33 p.m. EST Jan. 23 during a 40-minute launch window. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high-bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of three NASA Space Communication and Navigation SCaN networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit http://www.nasa.gov/tdrs. To learn more about SCaN, visit www.nasa.gov/scan. Photo credit: NASA/Dan Casper

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station's Launch Complex 41, a United Launch Alliance Atlas V with NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft atop, arrives at the launch pad. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http://www.nasa.gov/tdrs To learn more about SCaN, visit: www.nasa.gov/scan Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station's Launch Complex 41, a United Launch Alliance Atlas V with NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft atop, begins its rollout from the Vertical Integration Facility to the launch pad. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http://www.nasa.gov/tdrs To learn more about SCaN, visit: www.nasa.gov/scan Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. – In the Hangar AE Launch Vehicle Data Center at Cape Canaveral Air Force Station in Florida, NASA and contractor managers and engineers monitor progress of the countdown for the launch the agency's Tracking and Data Relay Satellite, or TDRS-L, spacecraft atop a United Launch Alliance Atlas V rocket. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http:__www.nasa.gov_tdrs To learn more about SCaN, visit: www.nasa.gov_scan Photo credit: NASA_Kim Shiflett

CAPE CANAVERAL, Fla. – The United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft to Earth orbit. Liftoff was at 9:33 p.m. EST. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http:__www.nasa.gov_tdrs To learn more about SCaN, visit: www.nasa.gov_scan Photo credit: NASA_Tony Gray and Sandy Joseph

CAPE CANAVERAL, Fla. -- A United Launch Alliance Atlas V rocket streaks through the night sky over Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, to Earth orbit. Launch was at 9:33 p.m. EST Jan. 23 during a 40-minute launch window. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high-bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of three NASA Space Communication and Navigation SCaN networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit http://www.nasa.gov/tdrs. To learn more about SCaN, visit www.nasa.gov/scan. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – The United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft to Earth orbit. Liftoff was at 9:33 p.m. EST. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http:__www.nasa.gov_tdrs To learn more about SCaN, visit: www.nasa.gov_scan Photo credit: NASA_Tony Gray and Sandy Joseph

CAPE CANAVERAL, Fla. – The United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft to Earth orbit. Liftoff was at 9:33 p.m. EST. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http:__www.nasa.gov_tdrs To learn more about SCaN, visit: www.nasa.gov_scan Photo credit: NASA_Tony Gray and Sandy Joseph

CAPE CANAVERAL, Fla. – During preparations for the launch of NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft, astronauts Eric Boe, left, and Bob Behnken discuss the status of the countdown with NASA managers in Cape Canaveral Air Force Station's Atlas V Spaceflight Operations Center. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http:__www.nasa.gov_tdrs To learn more about SCaN, visit: www.nasa.gov_scan Photo credit: NASA_Kim Shiflett

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station's Launch Complex 41, a United Launch Alliance Atlas V with NASA's Tracking and Data Relay Satellite, or TDRS-L, spacecraft atop, is being prepared for rollout from the Vertical Integration Facility to the launch pad. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http://www.nasa.gov/tdrs To learn more about SCaN, visit: www.nasa.gov/scan Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station's Atlas V Spaceflight Operations Center NASA and contractor managers and engineers monitor progress of the countdown for the launch the agency's Tracking and Data Relay Satellite, or TDRS-L, spacecraft atop a United Launch Alliance Atlas V rocket. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of NASA Space Communication and Navigation’s SCaN three networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit: http:__www.nasa.gov_tdrs To learn more about SCaN, visit: www.nasa.gov_scan Photo credit: NASA_Kim Shiflett

CAPE CANAVERAL, Fla. -- An exhaust plume forms at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida as the engines ignite under the United Launch Alliance Atlas V rocket carrying NASA's Tracking and Data Relay Satellite, or TDRS-L, to Earth orbit. Launch was at 9:33 p.m. EST Jan. 23 during a 40-minute launch window. The TDRS-L spacecraft is the second of three new satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the Tracking and Data Relay Satellite System TDRSS fleet, which consists of eight satellites in geosynchronous orbit. The spacecraft provide tracking, telemetry, command and high-bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include NASA's Hubble Space Telescope and the International Space Station. TDRS-L has a high-performance solar panel designed for more spacecraft power to meet the growing S-band communications requirements. TDRSS is one of three NASA Space Communication and Navigation SCaN networks providing space communications to NASA’s missions. For more information more about TDRS-L, visit http://www.nasa.gov/tdrs. To learn more about SCaN, visit www.nasa.gov/scan. Photo credit: NASA/Kevin O'Connell