The shuttle Endeavour's crew closed the ship's payload bay doors and geared up for re-entry and landing early Wednesday to close out the orbiter's 25th and final mission. Touchdown is expected at 2:35 a.m. EDT. Read More...

The Endeavour astronauts tested the shuttle's re-entry systems overnight Monday and began packing up for landing early Wednesday to close out the orbiter's 25th and final voyage. Read More...

The shuttle Endeavour undocked from the International Space Station for the 12th and final time late Sunday, backing away for a fly-around photo survey before testing new navigation sensors and software.
Read More...

The Endeavour astronauts wrapped up last-minute transfers early Sunday, said farewell to the crew of the International Space Station and moved back aboard the shuttle to prepare the ship for undocking Sunday night. Read More...

The shuttle Endeavour's crew helped out with repairs to one of the International Space Station's carbon dioxide scrubbers Saturday as NASA's next-to-last shuttle mission moved into the home stretch of a 16-day mission.
Read More...

Astronauts Michael Fincke and Gregory Chamitoff wrapped up a xx-hour xx-minute spacewalk early Friday, completing the U.S. segment of the International Space Station after 12 years of construction. Read More...

The Endeavour astronauts plan to carry out a fourth and final spacewalk Friday to mount the shuttle's no-longer-needed heat shield inspection boom on the International Space Station. Read More...

The Endeavour astronauts carried out a final inspection of the shuttle's heat shield early Thursday, fielded questions from reporters and geared up for a fourth and final spacewalk Friday. Read More...

Astronauts Andrew Feustel and Michael Fincke carried out a six-hour 54-minute spacewalk Wednesday, installing a robot arm mounting fixture on the space station and installing wiring for the Russian segment. Read More...

NASA will develop a version of the Bush administration's Orion capsule for future deep space missions beyond Earth orbit, the agency announced Tuesday. But it's not yet known when the spacecraft might fly. Read More...

The Endeavour astronauts helped out with space station maintenance Tuesday amid preparations for an overnight spacewalk, the third of four planned by the shuttle fliers. Read More...

A Russian Soyuz spacecraft carrying three returning space station crew members landed in Kazakhstan Monday to wrap up a 159-day stay in space. Read More...

The Endeavour astronauts took the day off Monday amid preparations for the afternoon departure of three space station crew members aboard a Russian Soyuz spacecraft. Read More...

In a brief ceremony Sunday on the eve of undocking, outgoing Expedition 27 commander Dmitry Kondratyev handed over command of the International Space Station to cosmonaut Andrey Borisenko. Read More...

Astronauts Andrew Feustel and Michael Fincke completed an eight-hour seven-minute spacewalk at 10:12 a.m. EDT Sunday, the second of four EVAs planned by the Endeavour astronauts. Read More...

Astronauts Andrew Feustel and Michael Fincke are set for a planned six-and-a-half-hour spacewalk Sunday to top off the ammonia coolant in a space station solar array and to lubricate a solar array drive mechanism. Read More...

Data from a "focused" inspection of a damaged heat shield tile on the belly of the shuttle Endeavour shows the orbiter can safely re-enter as is, without the need for any repairs or additional study, NASA said Saturday. Read More...

Pope Benedict XVI called the combined shuttle-station crews from the Vatican Saturday, asking about the environment and the role of science and technology in solving global problems. Read More...

The Endeavour astronauts will use an instrumented boom on the end of the shuttle's robot arm early Saturday to make a close-up, "focused" inspection of a gouge in a heat shield tile on the belly of the orbiter. Read More...

U.S. and Russian space managers have agreed to stage an out-of-this-world photo op Monday when the crew of a departing Soyuz photographs the space station and the shuttle Endeavour in a one-of-a-kind family portrait. Read More...

NASA managers have retargeted launch of the Atlantis on the 135th and final shuttle flight for around 11:40 a.m. EDT on July. Read More...

Astronauts Andrew Feustel and Gregory Chamitoff are carrying out a planned six-and-a-half-hour spacewalk to replace space exposure experiments and to set up an ammonia coolant line for use during an EVA Sunday. Read More...

Astronauts Andrew Feustel and Gregory Chamitoff are gearing up for a planned six-and-a-half-hour spacewalk, the first of four planned for the shuttle Endeavour's mission. Read More...

Engineers are continuing to assess two damage sites on the belly of the shuttle Endeavour to determine if an additional, "focused," inspection might be needed Saturday to collect more data. Read More...

The $2 billion Alpha Magnetic Spectrometer was attached to the International Space Station early Thursday. Scientists say the instrument already is detecting "thousands and thousands" of cosmic ray particles. Read More...

Shuttle commander Mark Kelly told reporters Thursday his wife, Arizona Rep. Gabrielle Giffords, came through surgery Wednesday in good condition as she continues her recovery from an assassination attempt in January. Read More...

Engineers are assessing several gouges and dings spotted in protective heat shield tiles on the underside of the shuttle Endeavour during final approach to the space station Wednesday. Read More...

Commander Mark Kelly guided the shuttle Endeavour to a "silky smooth" docking with the International Space Station Wednesday and his crewmates successfully mounted a massive spare parts pallet on the lab's power truss. Read More...

The Endeavour astronauts carried out a detailed inspection of the shuttle Endeavour's nose cap and wing leading edge panels Tuesday amid work to ready the shuttle Atlantis for launch on NASA's final shuttle flight in July. Read More...

The shuttle Endeavour rocketed away on its 25th and final flight Monday, putting on a spectacular, if brief, show for spectators as it knifed through a low deck of clouds and streaked into orbit. Read More...

Commander Mark Kelly and his five crewmates have strapped in aboard the shuttle Endeavour to await liftoff at 8:56:28 a.m. EDT. Forecasters are monitoring a deck of low clouds near the spaceport that could cause problems. Read More...

Engineers readied the shuttle Endeavour for fueling overnight Sunday, setting the stage for launch early Monday on a space station assembly mission. Forecasters continue to predict a 70 percent chance of good weather. Read More...

NASA's Mission Management Team met Saturday and cleared the shuttle Endeavour for launch Monday on a delayed mission to deliver a $2 billion particle physics detector to the International Space Station. Read More...

Engineers restarted the shuttle Endeavour's countdown Friday, setting the stage for launch Monday on a space station assembly flight. Forecasters continue to predict a 70 percent chance of good weather. Read More...

The Endeavour astronauts flew back to Florida Thursday to prepare for a delayed launch Monday on a space station assembly mission. Forecasters are predicting a 70 percent chance of good weather. Read More...

NASA managers met Monday and decided to press ahead with work to ready the shuttle Endeavour for a second launch try May 16 after extensive troubleshooting to resolve problems with hydraulic system fuel line heaters. Read More...

A United Launch Alliance Atlas 5 rocket successfully boosted a $1.3 billion missile early warning satellite into orbit Saturday after a picture-perfect liftoff from the Cape Canaveral Air Force Station. Read More...

The shuttle Endeavour's launch will be delayed to at least May 16, NASA officials said Friday, pending tests to confirm the health of hydraulic system electrical components that derailed an April 29 attempt. Read More...

Engineers troubleshooting a suspect electrical distribution box removed from the shuttle Endeavour's engine compartment after a launch scrub Friday have found damage that could indicate an external short circuit. Read More...

European Space Agency astronaut Paolo Nespoli, nearing the end of a long-duration stay aboard the International Space Station, is mourning the death of his 78-year-old mother, who passed away Monday near Milan, Italy, after an illness. Read More...

Work to repair the shuttle Endeavour will delay the ship's next launch attempt to at least May 10, engineers said Monday. An official launch date is expected Friday, after repairs are complete. Read More...

Engineers have traced an electrical glitch that grounded the shuttle Endeavour Friday to an avionics box in the ship's engine compartment. Replacing the box will delay launch until at least May 8. Read More...