Butch Wilmore and Sunita Williams spoke publicly for the first time about their unplanned nine-month flight at the International Space Station.

NASA's celebrity astronauts Butch Wilmore and Suni Williams say they would fly on Boeing's Starliner capsule again.

NASA astronauts Butch Wilmore and Suni Williams aren’t the first to run late in space, and their 9 ½-month mission falls short of any endurance record.

NASA astronauts Butch Wilmore and Suni Williams have returned to Earth after being stuck in space for more than nine months.

NASA's stuck astronauts are heading home now that a replacement crew has arrived at the International Space Station.

The two astronauts stuck at the International Space Station since June are welcoming their new ride home.

SpaceX has launched a rescue mission for the two stuck astronauts at the International Space Station.

Boeing is replacing the head of its defense and space business.

The astronauts stuck in space say it was hard to see their Boeing capsule leave without them.

Boeing’s first astronaut mission is finally over.

Boeing will attempt to return its problem-plagued capsule from the International Space Station later this week — with empty seats.

NASA has decided it’s too risky to bring two astronauts back to Earth in Boeing’s troubled new capsule.

NASA will decide this weekend whether Boeing's new capsule is safe enough to return two astronauts from the International Space Station, where they've been waiting since June.

NASA and Boeing have been monitoring two issues with the Starliner: one with a set of thrusters and the other involving helium leaks in the vehicle’s propulsion system.

NASA says it's still deciding whether to keep two astronauts at the International Space Station until early next year and send their troubled Boeing capsule back empty.

NASA says chances are growing that two test pilots who flew a new Boeing capsule to the International Space Station in June may have to switch to SpaceX for a ride home.

NASA is delaying its next astronaut launch to buy more time at the International Space Station for Boeing's troubled new crew capsule.

Officials say two NASA astronauts will remain at the International Space Station until engineers finish working on problems plaguing their Boeing capsule.

Boeing is closer to understanding what went wrong with its astronaut capsule in orbit, now that testing is complete on a spare thruster here on Earth.

Two astronauts who should have been back on Earth weeks ago say they're confident that Boeing's space capsule can return them safely.

NASA says two astronauts will stay in space longer to continue troubleshooting Boeing’s capsule.

Two astronauts are spending extra time at the International Space Station as NASA and Boeing troubleshoot capsule problems that popped up on the way there.

Boeing's space capsule has arrived at the International Space Station after encountering thruster trouble.

Boeing has finally launched NASA astronauts to the International Space Station after years of stumbles and delays.

Boeing has launched astronauts for the first time after years of delays.

Mission managers say last-minute computer trouble has nixed the latest launch attempt for Boeing’s first astronaut flight.

Boeing is now aiming for its first astronaut launch at the beginning of June.

Boeing's first astronaut launch is off until late next week to replace a bad valve in the rocket.

Boeing has called off its first astronaut launch because of a fluttering rocket valve.

Boeing is finally poised to launch astronauts to the International Space Station for NASA after years of delays and stumbles.

The two NASA astronauts assigned to Boeing's first human spaceflight have arrived in Florida for their May launch.

SpaceX has launched four astronauts to the International Space Station who will oversee the arrival of two new rocketships during their stint.

Already running years behind, Boeing's first astronaut flight is now off until at least next March.

Boeing's astronaut capsule faces more launch delays after new problems cropped up.

Boeing's first launch of astronauts has been delayed again, this time until July.

Boeing's first spaceflight with astronauts has been delayed until next year because of repairs that need to be made to the capsule.

Boeing's astronaut taxi has returned to Earth from the International Space Station, completing a repeat test flight with a mannequin on board.

NASA will provide live coverage of the return and landing of the uncrewed flight test for Boeing’s CST-100 Starliner spacecraft on Wednesday.

Boeing's astronaut capsule has arrived at the International Space Station in a critical repeat test flight.

Boeing's crew capsule has blasted off on a repeat test flight to the International Space Station.

NASA officials will be launching a Boeing OFT-2 test Thursday evening.

NASA and Boeing provided an update Friday on the status of the Orbital Flight Test-2 mission.

The Boeing Starliner spacecraft – atop a United Launch Alliance Atlas V rocket – had been moved into place on the launch pad at Cape Canaveral, Florida, for a test likely Tuesday.

NASA astronauts Raja Chair and Doug Wheelock explain how commercial missions are paving the way for the return to the moon.

CAPE CANAVERAL, Fla. – Boeing acknowledged Friday it failed to conduct full and adequate software tests before the botched space debut of its astronaut capsule late last year. A software error left the Starliner capsule in the wrong orbit in December and precluded a docking with the International Space Station. SpaceX, meanwhile, aims to launch its Dragon crew capsule with NASA astronauts this spring. Then, just hours before the capsule's early return to New Mexico, a second software error was detected by ground controllers. The December mission was supposed to be the company's last major hurdle before launching the first Starliner crew — two NASA astronauts and a Boeing astronaut.

The Starliner is Boeing’s answer to putting Americans back in the business of launching U.S. astronauts to the International Space Station. Our forward velocity (is) with this rocker switch on top ... so clicking that forward will increase your forward speed," Nelson said. Boeing hopes do it for half that. That could include a private customer visiting the International Space Station for research. Boeing hopes to launch sometime in the middle of 2018.