Four weeks after a Progress space station supply ship spun out of control in a launch mishap, Russian engineers have not yet revealed what might have gone wrong, casting a cloud of uncertainty over downstream flights of unpiloted cargo ships as well as Soyuz crew ferry craft.
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A SpaceX cargo capsule loaded with 3,100 pounds of research samples, no-longer-needed equipment and trash returned to Earth Thursday after a month-long stay at the International Space Station. Read More...

Soprano and would-be space tourist Sarah Brightman, who was in training for a flight to the International Space Station this fall aboard a Russian Soyuz ferry craft, will not be chasing her dream aloft after all, the singer's website and Facebook page revealed Wednesday.
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Russia is delaying the return to Earth of three space station crew members by about a month in the wake of the April 18 failure of a Russian Progress supply ship. Launch of three fresh crew members also will be delayed, from May 26 to late July.
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Simulating a launch pad emergency, an unmanned SpaceX Dragon capsule was blasted away from Cape Canaveral Wednesday, shooting to an altitude of several thousand feet before arcing over for an offshore splashdown in a dramatic emergency escape system test.
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SpaceX is readying an unmanned Dragon capsule for a simulated launch pad abort Wednesday, a short, high-speed flight to demonstrate an innovative rocket-powered escape system designed to quickly pull a crew to safety in the event of an impending booster failure. Read More...

Russian flight controllers have given up attempting to salvage a Progress cargo ship loaded with 3 tons of supplies and equipment intended for the International Space Station. Instead, the spacecraft likely will re-enter the atmosphere and burn up within the next two weeks. Read More...

A Russian Progress supply ship loaded with more than 3 tons of supplies and equipment bound for the International Space Station apparently spun out of control shortly after reaching orbit Tuesday, putting the resupply mission in jeopardy. Read More...

A SpaceX Dragon cargo ship loaded with more than two tons of equipment and supplies rendezvoused with the International Space Station early Friday and was captured by Italian astronaut Samantha Cristoforetti, using the lab's robot arm, to wrap up a smooth three-day rendezvous.
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A SpaceX Falcon 9 rocket boosted a Dragon cargo ship into orbit Tuesday on a three-day flight to the International Space Station, but an attempt to land the booster’s first stage on an off-shore barge was not successful. Read More...

Electrically active anvil clouds approaching the Cape Canaveral Air Force Station Monday forced SpaceX to order a 24-hour delay for launch of a Falcon 9 rocket carrying a Dragon cargo ship bound for the International Space Station.
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Settling in aboard the International Space Station for a marathon 342-day stay in orbit, astronaut Scott Kelly says he's taking life in space "one day at a time," adding he plans to work at a slightly slower pace to maintain an even keel. Read More...

A workhorse Soyuz booster thundered to life and climbed into a dark Kazakh sky Friday, carrying NASA astronaut Scott Kelly and cosmonaut Mikhail Kornienko on a four-orbit voyage to the International Space Station to kick off a marathon 342-day mission, the longest flight ever attempted by an American.
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Shuttle veteran Scott Kelly first heard about NASA's plans to send an astronaut to the International Space Station for nearly a full year shortly after he completed his third space flight in 2011, a 159-day stay aboard the orbital lab complex.
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Taking space station resupply to new heights, Lockheed Martin unveiled plans for an innovative modular spacecraft Thursday that could be used to deliver cargo to the lab complex or serve as a small habitat for NASA astronauts making deep space voyages aboard the agency's Orion capsules.
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Three space station fliers -- the outgoing NASA commander and two Russian cosmonauts -- undocked and returned to Earth Wednesday, ending a 167-day stay in space with a nail-biting communications blackout that left the crew out of contact with Russian flight controllers during much of the trip home.
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Astronauts Terry Virts and space station commander Barry "Butch" Wilmore ventured back outside Sunday for their third spacewalk in eight days to complete initial preparations for upcoming dockings by Boeing and SpaceX crew capsules.
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International Space Station managers Friday cleared astronauts Barry "Butch" Wilmore and Terry Virts to proceed with a third spacewalk Sunday after concluding a small amount of water in Virts' space helmet after an EVA Wednesday was an understood condition.
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Astronauts Barry "Butch" Wilmore and Terry Virts carried out the second of three spacewalks to help ready the lab complex for dockings by commercial crew capsules. Back inside the station's airlock, Virts reported a small amount of water in his space helmet, but officials said he was never in any danger.
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Astronauts Barry "Butch" Wilmore and Terry Virts floated outside the International Space Station Saturday and installed wiring needed for two new docking mechanisms that will be attached later this year for use by Boeing and SpaceX crew capsules.
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Boeing, United Launch Alliance, NASA and the Air Force broke ground Friday for construction of a 20-story-tall launch pad crew access tower that will be used by astronauts taking off atop ULA Atlas 5 rockets aboard Boeing's commercially developed CST-100 ferry craft starting in 2017.
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NASA space station managers decided Thursday to delay the first two of three planned spacewalks by one day to give flight controllers and engineers a chance to catch their collective breath after exhaustive troubleshooting to verify the health of critical internal spacesuit components.
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Six hours after launch from Kazakhstan Tuesday, a Russian Progress supply ship loaded with 3.1 tons of supplies and propellant completed a problem-free automated rendezvous with the International Space Station, gliding to a smooth docking 257 miles above the Atlantic Ocean. Read More...

Launch of a SpaceX Falcon 9 rocket carrying a space weather satellite was scrubbed Tuesday by high winds aloft, but the company pressed ahead with recovery of a returning space station cargo ship. Read More...

NASA hopes to begin launching U.S. and partner astronauts to the space station aboard Boeing and SpaceX ferry craft in the 2017 timeframe, but agency managers expect to continue sending crew members up aboard Russian Soyuz spacecraft.
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NASA expects to spend some $5 billion on commercial spacecraft to carry astronauts to and from the International Space Station, ending reliance on the Russians for crew ferry flights and eventually lowering the average cost per seat to around $58 million. Read More...

Concern about a possible ammonia coolant leak early Wednesday prompted astronauts aboard the International Space Station to briefly evacuate the U.S. segment of the complex and join three cosmonauts in the Russian portion of the outpost. Read More...

A SpaceX Falcon 9 rocket successfully boosted a space station cargo ship into orbit Saturday but an unprecedented attempt to land the rocket's first stage on a barge stationed off the coast of Florida was not successful. Read More...

Launch of a SpaceX Falcon 9 rocket carrying a Dragon cargo ship bound for the International Space Station was called off Tuesday because of apparent problems with the second stage engine steering system.
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SpaceX engineers made final preparations Monday for the planned Tuesday launch of a Falcon 9 rocket carrying a Dragon cargo ship loaded with more than 5,200 pounds of supplies, equipment and science gear bound for the International Space Station. Read More...

Taking time off for the holidays, the crew of the International Space Station is preparing for a busy start to the new year, with the arrival of a SpaceX cargo ship next week and three U.S. spacewalks in February.
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NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko are gearing up for launch March 27 to kick off a record one-year stay aboard the International Space Station, an orbital marathon crucial for planning future flights beyond Earth. Read More...

Braving near-zero temperatures, a Russian Soyuz spacecraft carrying a crew of three vaulted into orbit Sunday and docked with the International Space Station six hours later. (UPDATED) Read More...

A veteran cosmonaut, a German volcanologist and a Navy test pilot-turned-astronaut whose mastery of social media earned him -- and NASA -- a global following, undocked from the International Space Station and returned to Earth Sunday after 165 days aloft.
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Orbital Sciences is accelerating development of a replacement engine for its Antares rocket in the wake of a spectacular Oct. 28 launch disaster that apparently was triggered by the failure of a Russian-built first-stage engine.
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Space station astronaut Reid Wiseman, preparing to return to Earth this weekend after 165 days in orbit, said Monday commercial spaceflight represents the "next breakthrough" in aerospace technology.
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A day after an explosion that destroyed an Orbital Sciences Antares rocket carrying a space station cargo ship, company officials said Wednesday they hope to zero in on the likely cause of the mishap within a week or so. Read More...

Nine hours after a spectacular launch failure that destroyed a U.S. supply ship bound for the International Space Station, a Russian Progress cargo ship blasted off from Kazakhstan and successfully docked with the lab complex six hours later Read More...

An Orbital Sciences Antares rocket exploded seconds after launch from the Virginia coast Tuesday, erupting in a spectacular fireball and destroying an uncrewed Cygnus cargo ship in a disheartening failure for NASA's commercial space station resupply program.
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Two cosmonauts ventured outside the International Space Station Wednesday, jettisoning three no-longer-needed components and carrying out a photo survey of the Russian segment of the lab complex in the year's seventh and final ISS spacewalk. Read More...

Astronauts Reid Wiseman and Barry "Butch" Wilmore floated outside the International Space Station Wednesday and, after a bit of trouble with a balky bolt, replaced a broken voltage regulator to restore the lab's electrical grid to normal operation.
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Rescinding a work stoppage in the wake of a bid protest by losing competitor Sierra Nevada, NASA has told Boeing and SpaceX to resume work on commercial crew spacecraft to avoid possible delays ferrying astronauts to and from the space station. Read More...

Astronauts Reid Wiseman and Alexander Gerst carried out a smooth six-hour 13-minute spacewalk Tuesday, moving a pump module to long-term storage and installing backup power gear for the space station's robot arm transporter. Read More...

Two U.S. spacewalks this week and next will the stage for a complex series of eight to 10 NASA EVAs and module relocations next year that are needed to prepare the station for dockings by Boeing and SpaceX commercial crew ferry craft.
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In the wake of new contracts for commercial space taxis, NASA Friday announced a new competition for a second round of contracts to build and launch unpiloted spacecraft to deliver cargo and supplies to the International Space Station.
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A Soyuz ferry craft carrying a crew of three docked with the International Space Station late Thursday. While one of the Soyuz capsule's two solar arrays did not deploy after launch, the crew had no problems completing a four-orbit rendezvous. Read More...

Two days after launch from Cape Canaveral, a SpaceX Dragon cargo ship loaded with 2.5 tons of equipment and supplies pulled up to the International Space Station early Tuesday and was captured by the lab's robot arm to complete a smooth rendezvous.
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Running a day late because of stormy weather, a SpaceX cargo ship packed with more than 5,100 pounds of equipment and supplies blasted off early Sunday on a two-day flight to the International Space Station.
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Thick clouds and rain over central Florida early Saturday forced SpaceX to order a 24-hour delay for launch of a Falcon 9 rocket carrying a Dragon supply ship bound for the International Space Station.
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A SpaceX Falcon 9 rocket stands poised to launch a Dragon cargo ship on a two-day flight to the International Space Station. Read More...

NASA cost estimates for operating the International Space Station through 2024 are "overly optimistic," the agency's inspector general reported Thursday, adding that the price of new U.S.-built space taxis likely will be higher than currently projected.
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Aerospace giant Boeing and newcomer SpaceX will share $6.8 billion in NASA contracts to build commercial space taxis to fly astronauts to and from the International Space Station. Read More...

Two Russian cosmonauts and a NASA astronaut strapped into a Soyuz ferry craft, undocked from the International Space Station and plunged back to Earth Wednesday, settling to a jarring rocket-assisted landing in Kazakhstan to close out a 169-day mission.
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Space station cosmonauts Alexander Skvortsov and Oleg Artemyev began a planned six-hour and 15-minute spacewalk Monday, launching a small Peruvian science satellite before pressing ahead with experiment swap outs and maintenance. Read More...

The fifth and final launch of the European Space Agency's fifth and final station-bound ATV cargo ship marks the end of an era as the agency shifts its focus to providing power and propulsion for NASA's Orion deep space exploration vehicle. (UPDATED) Read More...

A Russian Progress cargo ship loaded with 2.8 tons of supplies and equipment blasted off from the Baikonur Cosmodrome in Kazakhstan Wednesday and docked with the International Space Station after a problem-free rendezvous. Read More...

A Cygnus cargo ship loaded with more than 1.5 tons of supplies and equipment was plucked out of open space by the International Space Station's robot arm early Wednesday and pulled in for berthing to wrap up a three-day rendezvous.
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An Orbital Sciences Antares rocket carrying a Cygnus cargo capsule thundered away from the Virginia coast Sunday and streaked into orbit, kicking off a three-day flight to deliver more than 1.5 tons of supplies and equipment to the International Space Station.
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Realtime coverage of Russian EVA-38 (antenna installation; experiment relocation) Read More...

With a showman's flair for the dramatic, rocket designer Elon Musk unveiled a futuristic space capsule Thursday, a sleek reusable ferry craft that could carry astronauts to the International Space Station and bring them home to a pinpoint, rocket-powered landing.
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A Russian Soyuz spacecraft carrying a three-man crew blasted off from the Baikonur Cosmodrome in Kazakhstan Wednesday and docked with the International Space Station after a four-orbit rendezvous to boost the lab's crew back to six. (UPDATED) Read More...

A veteran Russian cosmonaut, a U.S. Navy test pilot-turned-astronaut and a German volcanologist are set for a six-hour flight to the International Space Station Wednesday to boost the lab's crew back to six and kick off a busy summer of research and multiple EVAs. Read More...

A Japanese astronaut, a veteran Russian cosmonaut and a NASA flight engineer strapped into a Soyuz ferry craft, undocked from the International Space Station and fell back to Earth Tuesday to close out a 188-day stay in orbit. Read More...

Russian-built RD-180 engines that power the first stage of United Launch Alliance's Atlas 5 rocket will no longer be sold for use in U.S. military missions, Dmitry Rogozin, Russia's deputy prime minister for space and defense, said Tuesday.
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The U.S. Court of Federal Appeals has issued a temporary injunction barring United Launch Alliance from purchasing Russian engines and hardware for its venerable Atlas 5 rocket following a complaint by SpaceX alleging such sales violate U.S. sanctions. Read More...

Realtime coverage of U.S. EVA-26 (MDM EXT-2 replacement). Read More...

Wrapping up a smooth two-day rendezvous, a SpaceX Dragon cargo ship was successfully attached to the International Space Station early Sunday, bringing nearly 5,000 pounds of supplies and equipment to the lab complex.
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A SpaceX Falcon 9 rocket boosted a Dragon cargo capsule into orbit Friday, the first step in a two-day rendezvous with the International Space Station, the company's third commercial resupply mission.
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SpaceX is pressing ahead for another attempt Friday to launch a Falcon 9 rocket carrying a commercial cargo craft bound for the International Space Station, setting up an Easter Sunday rendezvous and berthing.
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A Russian Progress supply ship loaded with 2.9 tons of supplies and equipment bound for the International Space Station blasted off and streaked into space Wednesday, docking with the International Space Station six hours later. Read More...

NASA has been told to suspend contact with Russian government officials because of Russia's "ongoing violation of Ukraine's sovereignty and territorial integrity," according to an agency memo circulated Wednesday. The International Space Station is exempt.
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A Russian Soyuz spacecraft carrying two cosmonauts and a NASA astronaut glided to a smooth linkup with the International Space Station Thursday, two days after a technical snag blocked a fast-track rendezvous and docking shortly after launch Tuesday.
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After a glitch interrupted a planned four-orbit rendezvous with the International Space Station Tuesday, the Soyuz TMA-12M crew pressed ahead Wednesday with a two-day rendezvous. Read More...

Two Russian cosmonauts and a NASA astronaut rocketed smoothly into space aboard a Soyuz ferry craft Tuesday, but the crew ran into problems executing a required rendezvous rocket firing, delaying docking with the International Space Station until Thursday at the earliest.
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Launch of a SpaceX Falcon 9 rocket carrying a cargo ship bound for the International Space Station has been delayed to no earlier than March 30 because of what sources described as apparent contamination that could pose problems for station-bound research hardware. Read More...

Despite strained relations over Russian actions in Ukraine, superpower cooperation in space continued unabated Monday with two cosmonauts and a NASA astronaut departing the International Space Station for a fiery plunge back to Earth late Monday. (UPDATED) Read More...

A misunderstanding of how water behaves in a spacesuit operating in weightlessness, combined with institutional complacency and a perceived pressure to avoid delays, resulted in a frightening water leak during a 2013 spacewalk, a mishap board concluded. Read More...

An unmanned Progress supply ship loaded with 2.8 tons of equipment and supplies rocketed into orbit Wednesday, chased down the International Space Station and glided to a smooth automated docking after a four-orbit rendezvous.
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Cosmonauts Oleg Kotov and Sergey Ryazanskiy re-installed two commercial cameras on the hull of the International Space Station Monday. Despite apparent signs of trouble with one camera, officials with Vancouver-based UrtheCast called the work a success. Read More...

Realtime coverage of Russian EVA-37A (UrtheCast camera installation; 2nd attempt) Read More...

A commercial cargo ship loaded with nearly 1.5 tons of supplies and equipment was captured by the International Space Station's robot arm early Sunday and attached to a docking port, wrapping up a complex but problem-free two-and-a-half-day rendezvous.
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Delayed one day by cold weather and another day by concern about space radiation, an Orbital Sciences Corp. Antares rocket carrying a commercially developed cargo ship blasted off Thursday and set off after the International Space Station.
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Launch of an Orbital Sciences Antares rocket carrying a Cygnus cargo ship bound for the International Space Station was scrubbed Wednesday because of high space radiation levels after a solar flare. Based on a detailed analysis, the flight was retargeted for Thursday.
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The Obama administration has given NASA the go-ahead to operate the International Space Station through at least 2024, the agency says, allowing government and private-sector researchers to count on at least another decade of operations. Read More...

Realtime coverage of Russian EVA-37 (UrtheCast camera installation; experiments) Read More...

Realtime coverage of U.S. EVA-25 (loop A ammonia pump module replacement). Read More...

Astronauts Rick Mastracchio and Mike Hopkins prepared their spacesuits Monday for a Christmas Eve spacewalk, their second in four days to complete an urgent cooling system repair job aboard the International Space Station's main power truss.
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Realtime coverage of U.S. EVA-24 (loop A ammonia pump module removal). Read More...

Engineers are confident the spacesuits that will be used for two and possibly three excursions to repair the space station's coolant system are in good shape and that no problems with water leakage are expected. Read More...

After an exhaustive effort to come up with a fix for a balky valve in a space station coolant loop, NASA managers decided Tuesday to resolve the problem with two and possibly three spacewalks to replace a refrigerator-size ammonia pump module. Read More...

Engineers are running tests to figure out what is affecting the operation of a critical valve inside a coolant pump aboard the International Space Station that has forced flight controllers to shut down non-essential systems, curtailing science operations. Read More...

A valve in a coolant system pump module aboard the International Space Station apparently malfunctioned Wednesday, triggering cooling problems in one external ammonia loop and prompting flight controllers to power down non-essential equipment. Read More...

Space station commander Oleg Kotov took over manual control of an approaching Progress supply ship Friday after an undisclosed problem and deftly guided the craft in for a smooth docking at the International Space Station's aft port. Read More...

Fifteen years ago, a Russian Proton rocket carrying the first module of what would become the International Space Station roared to life and climbed into orbit, kicking off one of the most complex -- and expensive -- engineering projects ever attempted. Read More...

Three station fliers strapped into their Soyuz TMA-09M ferry craft and plunged back to Earth Sunday, settling to a jarring rocket-assisted landing on the frigid steppe of Kazakhstan to close out a 166-day stay in space. Read More...

Realtime coverage of Russian spacewalk No. 36. Read More...

Two Russian cosmonauts plan to carry an unlighted Olympic torch outside the International Space Station Saturday, staging a symbolic spacewalk relay as part of the build up to the 2014 Winter Games. Read More...

A Soyuz rocket carrying a crew of three and an Olympic torch heralding the 2014 Winter Games in Sochi, Russia, streaked into orbit Wednesday and docked with the International Space Station early Thursday. Read More...

A landing gear malfunction that caused a small commercial spacecraft to skid off the runway after its first unmanned flight Saturday caused relatively minor damage, an official with builder Sierra Nevada said. Read More...

In a dramatic California test flight, SpaceX launched an upgraded, more powerful version of its Falcon 9 rocket Sunday -- a booster the company hopes will someday carry astronauts to the space station. Read More...

A commercial cargo ship making its maiden flight was successfully captured by the International Space Station's robot arm early Sunday in a major milestone for NASA.
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A Russian Soyuz rocket carrying two cosmonauts and a NASA astronaut blasted off from Kazakhstan Wednesday, climbed into orbit and docked with the International Space Station after a six-hour rendezvous. Read More...

An Orbital Sciences Corp. Cygnus cargo ship making its maiden flight to the International Space Station aborted its initial approach to the lab complex early Sunday because of suspect navigation data.
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In a critical test flight for NASA's space station program, an Orbital Sciences Corp. Antares rocket blasted off Wednesday, lofting a Cygnus cargo ship on its maiden flight to the international lab complex. Read More...

In a major milestone for NASA, Orbital Sciences Corp. is readying an Antares rocket for launch Wednesday to boost an unmanned Cygnus cargo ship on a maiden flight to the International Space Station.
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Closing out a 166-day stay in orbit, two cosmonauts and a NASA astronaut rode a Russian Soyuz spacecraft back to Earth Tuesday, settling to a jarring rocket-assisted touchdown on the steppe of Kazakhstan.
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Cosmonauts Fyodor Yurchikhin and Alexander Misurkin staged a five-hour 58-minute spacewalk Thursday to mount a camera aiming platform on the space station and to tighten loose antenna covers. Read More...

Cosmonauts Fyodor Yurchikhin and Alexander Misurkin set a new Russian EVA record Friday, spending seven hours and 29 minutes outside the International Space Station to lay cables for a new lab module. Read More...

A Japanese cargo ship loaded with nearly 4 tons of science gear, supplies and spare parts was attached to the International Space Station Friday after a near-flawless rendezvous.
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An unmanned Japanese cargo ship loaded with nearly 4 tons of science gear, spare parts and supplies rocketed away from Japan Saturday, kicking off a six-day flight to the International Space Station.
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A dangerous leak resulting in a large blob of water sloshing inside Italian astronaut Luca Parmitano's space helmet forced NASA to abort a planned six-and-a-half-hour spacewalk Tuesday.
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Astronauts Christopher Cassidy and Luca Parmitano cut short a planned 6.5-hour spacewalk Tuesday because of an unusual, and potentially dangerous buildup of water in Parmitano's helmet. Read More...

Astronauts Christopher Cassidy and Luca Parmitano staged a successful six-hour seven-minute spacewalk Tuesday, the first of two planned over seven days to work through a backlog of space station tasks. Read More...

Cosmonauts Fyodor Yurchikhin and Alexander Misurkin staged a successful six-hour 34-minute spacewalk Monday, making preparations for installation of a new Russian laboratory module later this year. Read More...

An unmanned European Space Agency cargo ship loaded with 7.3 tons of supplies, spare parts and science gear docked with the International Space Station early Saturday. Read More...

A powerful Ariane 5 rocket vaulted away from its South American launch pad Wednesday, lofting an unmanned European Space Agency cargo ship on a flight to the International Space Station. Read More...

A Soyuz rocket blasted off Tuesday and thundered into orbit carrying a veteran cosmonaut, a NASA shuttle veteran and a rookie Italian test pilot on a fast-track flight to the International Space Station. Read More...

Engineers prepped a Soyuz spacecraft for launch Tuesday to ferry three crew members -- a veteran Russian cosmonaut, an Italian test pilot and an American shuttle veteran -- to the International Space Station. Read More...

A Soyuz spacecraft carrying three outgoing space station crew members undocked Monday, on track for landing in Kazakhstan to close out a 146-day mission. Read More...

Astronauts Thomas Marshburn and Christopher Cassidy carried out a five-hour 30-minute spacewalk Saturday to remove and replace a suspect coolant pump assembly on the space station's power truss. Read More...

NASA managers are hopeful the replacement of a pump module during an impromptu spacewalk Saturday will eliminate an ammonia coolant leak aboard the International Space Station, officials said Friday.
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Pending final approval, space station astronauts are gearing up for an unscheduled spacewalk Saturday to look for the source of an ammonia coolant leak on the far left end of the lab's solar power truss. Read More...

A Russian cargo ship hobbled by a jammed navigation antenna glided into its port on the International Space Station early Friday, completing a dramatic automated rendezvous. Read More...

Russian flight controllers are troubleshooting a problem with a navigation antenna on an unmanned Progress supply ship launched Wednesday on a two-day flight to the International Space Station. Read More...

A commercially developed rocket blasted off from the Virginia coast and streaked into space Sunday, chalking up a picture-perfect maiden flight that sets the stage for space station cargo flights later this year. Read More...

For the second time in four days, the maiden flight of a powerful new rocket designed to boost space station cargo ships into orbit was called off Saturday, this time because high upper-level winds, officials said.
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Cosmonauts Pavel Vinogradov and Roman Romanenko staged a six-hour 38-minute spacewalk Friday, accomplishing their primary objectives but dropping an experiment panel overboard. Read More...

Running two days late, Orbital Sciences managers decided Thursday to delay the maiden flight of the company's new Antares rocket one more day to Saturday because of expected bad weather. Read More...

Orbital Sciences Corp. made final preparations Tuesday for the first flight of its Antares rocket, a commercially-built booster designed to launch cargo ships to the International Space Station. Read More...

The Obama administration is requesting $17.7 billion for NASA in its fiscal 2014 budget proposal, including $105 million to begin laying the groundwork for a proposed mission to robotically capture a small asteroid. Read More...

A $2 billion cosmic ray detector attached to the International Space Station has detected positrons that could be the result of dark matter interactions, but scientists say more observations are needed to be sure.
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A commercial cargo capsule plunged back to Earth Tuesday, wrapping up a month-long space station resupply mission with an on-target splashdown in the Pacific Ocean. Read More...

Running a day late, three space station crewmen strapped into their Soyuz ferry craft and dropped out of orbit Friday, plunging to a touchdown on the fog-shrouded Kazakh steppe to close out a 144-day mission.
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Dismal weather in Kazakhstan forced Russian flight controllers to order a one-day landing delay for two Russian cosmonauts and a NASA astronaut who are closing out a nearly five-month stay in space. Read More...

After a flawless rendezvous, a SpaceX Dragon cargo capsule was captured by the International Space Station's robot arm early Sunday, bringing more than a ton of supplies and equipment to the outpost. Read More...

With its propulsion system working flawlessly, a SpaceX cargo ship loaded with supplies and equipment was cleared by NASA Saturday to press ahead for a day-late capture by the lab complex early Sunday.
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A SpaceX cargo ship bound for the International Space Station thundered into orbit Friday, but trouble with maneuvering thrusters triggered extensive analysis and a delayed rendezvous. Read More...

SpaceX readied a Falcon 9 rocket and Dragon cargo ship for launch Friday to deliver more than 2,300 pounds of science gear, spare parts and crew supplies to the International Space Station. Read More...

A procedural issue during a software update aboard the International Space Station Tuesday briefly knocked the lab's satellite communications system out of action, but the problem was quickly resolved.
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A Russian supply ship loaded with 2.9 tons of supplies and equipment blasted off Monday and flew a fast-track trajectory to docking with the International Space Station just six hours later. (UPDATED)
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An inflatable module developed by a Las Vegas hotel entrepreneur will be attached to the International Space Station in 2015 for a two-year test run to evaluate the technology's performance in space. Read More...

The first American manned spacecraft to reach orbit in the wake of the shuttle's retirement will be crewed by company test pilots -- not NASA astronauts -- as early as mid 2015, company officials say.
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A Russian Soyuz spacecraft glided to a smooth holiday docking with the International Space Station Friday, bringing three fresh crew members to the lab complex after a two-day orbital chase.
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Braving arctic temperatures, a Russian Soyuz spacecraft roared to life and streaked smoothly into orbit Wednesday, carrying a veteran three-man crew on a two-day flight to the International Space Station. Read More...

Looking forward to Christmas in orbit, a Russian cosmonaut, a Canadian shuttle veteran and a NASA physician-astronaut made final preparations for blastoff Wednesday aboard a Soyuz spacecraft. Read More...

Spending a year in the cramped confines of the International Space Station will be challenging, but the two crewmen who plan to do just that in 2015-16 say they don't anticipate any major problems. Read More...

Three space station fliers strapped into their Soyuz ferry craft, undocked and plunged back to Earth Sunday, making a fiery descent to a frigid pre-dawn landing in Kazakhstan to close out a 127-day stay in space. Read More...

Amid spacewalk preparations, the Russians launched a Progress supply ship, monitored its automated docking with the space station and then adjusted the lab's orbit to avoid a piece of space debris. Read More...

In a major milestone for the space station program, a commercial cargo capsule loaded with experiment samples returned to Earth Sunday, plunging back through the atmosphere to a Pacific Ocean splashdown.
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Space station commander Sunita Williams and Akihiko Hoshide plan a Nov. 1 spacewalk to isolate a small, but growing leak in a solar array ammonia coolant loop. Read More...

A Russian Soyuz spacecraft carrying two cosmonauts and a NASA astronaut glided to a smooth docking with the International Space Station Thursday, boosting the lab's crew back to six. Read More...

Two rookie cosmonauts and a NASA shuttle veteran rocketed into orbit aboard a Russian Soyuz ferry craft Tuesday and set off after the International Space Station. Read More...

Facing a particularly intense first week in space, two cosmonauts and a NASA shuttle veteran geared up for launch early Tuesday aboard a Russian Soyuz spacecraft bound for flight to the International Space Station. Read More...

A commercial cargo capsule loaded with a half-ton of supplies and equipment was captured by the International Space Station's robot arm early Wednesday after a flawless final rendezvous.
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Soprano Sarah Brightman, believed to be one of the world's wealthiest classical crossover performers, has bought a seat on a Russian Soyuz spacecraft for a 10-day visit to the International Space Station. Read More...

SpaceX engineers are reviewing telemetry to figure out what caused a dramatic first stage engine failure Sunday night during launch of a commercial cargo ship bound for the International Space Station. Read More...

An unmanned cargo capsule built by SpaceX under a $1.6 billion commercial contract with NASA was boosted into orbit Sunday on its first operational flight to the International Space Station. Read More...