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