United Launch Alliance
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Air Force selects Atlas 5 to launch multipurpose satellite to high orbit
A nuclear blast detection satellite and an assortment of experiments will be boosted directly into geosynchronous orbit 22,300 miles above Earth in 2019 by the most-powerful version of United Launch Alliance's Atlas 5 rocket, the Air Force has decided.
Video: Bringing NASA’s TDRS-M satellite to Florida
Go behind the scenes to see the labor it takes to deliver a satellite to its launch base, in this case NASA's Tracking and Data Relay Satellite-M scheduled for launch Aug. 3 atop an Atlas 5 rocket.
TDRS-M satellite and its Atlas 5 rocket shipped to Florida for launch campaign
A space-bound NASA satellite was hauled aboard a military transport aircraft from a Southern California factory to the launch site in Florida on Friday and its United Launch Alliance Atlas 5 rocket booster arrived by sea from the manufacturing plant in Alabama today.
S.S. John Glenn freighter departs space station after successful cargo delivery
The Cygnus commercial logistics vehicle departed the International Space Station Sunday morning for a week-long free-flight filled with autonomous science tasks before re-entry.
Video: OA-7 Cygnus freighter departs International Space Station
The International Space Station crew releases the Cygnus OA-7 commercial cargo ship from the Canadian robotic arm to begin free-flight away from the lab complex, completing 43-day visit that delivered supplies, food and science gear.
VideoLive webcast: Cygnus freighter leaves the space station Sunday morning
Taking advantage of available astronaut time, the International Space Station's crew will cast off the commercial Orbital ATK Cygnus freighter on Sunday morning nearly six weeks ahead of schedule.
NASA unveils renamed solar probe
A NASA spacecraft being readied for launch in 2018 will make repeated trips through the sun's outer atmosphere, passing within 4 million miles of the star's blazing surface at more than 430,000 mph to shed light on what powers the sun's high-temperature corona, the origins of the solar wind and the causes of potentially catastrophic solar storms.
AR1 engine clears milestone in step toward ending U.S. reliance on Russian propulsion
A rocket engine that could power United Launch Alliance's next-generation rocket has passed a major design review, clearing the way for full-scale hotfire testing starting next year and certification for test flights in 2019, according to Aerojet Rocketdyne, the powerplant's developer.
Blue Origin encounters setback in BE-4 engine testing
Blue Origin said Sunday that it lost a set of powerpack hardware for its BE-4 engine during a ground test mishap, dealing at least a minor setback to the development of a powerful U.S.-made propulsion system that United Launch Alliance says is the leading candidate to power the first stage of its next-generation Vulcan rocket.
Photos: Sunday’s return of X-37B after 718 days in space
This gallery of U.S. Air Force photos show technicians, wearing protective SCAPE suits, initially check for hazardous hypergolic fuel vapors around the X-37B spaceplane on the Shuttle Landing Facility runway and the subsequent tow of the vehicle to its newly-renovated hangar at the Kennedy Space Center.