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NASA outlines why it passed over Sierra Nevada
NASA cited the complexity of Sierra Nevada's Dream Chaser space plane and an uncertainty of when the proposed crew transport craft would be ready to fly astronauts to the International Space Station as the primary reasons the agency picked Boeing and SpaceX for lucrative contracts to develop commercial space taxis.
Photos: Lightning shines in the eye of a cyclone
Electrifying photos taken from the International Space Station show flashes of lightning glowing like spotlights in the eye of Tropical Cyclone Bansi in the Indian Ocean.
NASA hopes to replace cargo lost on Antares failure this year
NASA officials say the International Space Station's logistics chain was designed to absorb a launch failure like the mishap that destroyed an Orbital Sciences Corp. cargo craft in October, but pressure is on SpaceX to deliver supplies on time this year.
Astronauts eager to dig in to fresh delivery of supplies, gifts
Astronauts on the International Space Station are eager to begin unpacking 2.6 tons of supplies and experiments -- including a package of belated Christmas gifts -- after delivery aboard a SpaceX Dragon cargo capsule Monday.
Photos: Falcon 9 rocket climbs away from Cape Canaveral
Crowned with a commercial cargo capsule with 5,100 pounds of provisions and experiments, SpaceX's Falcon 9 rocket took off from Cape Canaveral on Saturday, sending the Dragon supply ship on a two-day trek to the International Space Station. See photos of the predawn liftoff.
Dragon successfully launched, rocket recovery demo crash lands
A commercial Dragon spaceship soared into orbit from Cape Canaveral on Saturday in pursuit of the International Space Station, but the automated craft's Falcon 9 booster crash landed after flying back to Earth in a daring test of futuristic reusable rocket technologies.
SpaceX cargo rocket ready for another launch attempt
SpaceX is counting down to liftoff Saturday of a Falcon 9 rocket with a commercial cargo craft heading for the International Space Station after engineers replaced a component in an upper stage steering system that grounded the launcher Tuesday.
Next Falcon 9 launch attempt pushed back to Saturday
SpaceX is targeting Saturday for launch of its next space station resupply mission from Cape Canaveral after a problem with an upper stage steering system actuator flared up during a countdown Tuesday.
GAO reaffirms NASA’s commercial crew decision
The U.S. Government Accountability Office has denied a protest filed by Sierra Nevada Corp. challenging NASA's selection of competitors Boeing and SpaceX to build commercial human-rated space capsules to fly astronauts to the International Space Station.
NASA ‘leaning on’ SpaceX to keep ISS supply lines open
The Dragon spaceship poised for launch Tuesday will carry more than 2.5 tons of equipment for the International Space Station's six-person crew, making the first U.S. supply delivery to the orbiting research complex since the crash of an Antares cargo rocket in October.