
A Russian MI-8 helicopter waits to take Expedition 56 Commander Drew Feustel of NASA from the Soyuz MS-08 landing site to the Karaganda Airport in Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos returned after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

A Russian MI-8 helicopter waits to take Expedition 56 Flight Engineer Ricky Arnold of NASA from the Soyuz MS-08 landing site to the Karaganda Airport in Kazakhstan on Thursday, Oct. 4, 2018. Arnold, Expedition 56 Commander Drew Feustel of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos returned after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA rests outside the Soyuz Capsule after he, Expedition 56 Commander Drew Feustel of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA rests in a chair just minutes after he and Expedition 56 Commander Drew Feustel of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Commander Drew Feustel of NASA rests outside the Soyuz Capsule after he, Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Commander Drew Feustel of NASA rests in a chair just minutes after he and Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos rests outside the Soyuz Capsule after he, Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Commander Drew Feustel of NASA landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos rests in a chair just minutes after he and Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Commander Drew Feustel of NASA landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos is helped out of the Soyuz MS-08 spacecraft just minutes after he, Expedition 56 Commander Drew Feustel, and Flight Engineer Ricky Arnold of NASA, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos is carried to a medical tent shortly after he, Expedition 56 Commander Drew Feustel, and Flight Engineer Ricky Arnold of NASA landed in their Soyuz MS-08 spacecraft near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Commander Drew Feustel of NASA is carried to a medical tent shortly after he, Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos landed in their Soyuz MS-08 spacecraft near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA is helped out of the Soyuz MS-08 spacecraft just minutes after he, Expedition 56 Commander Drew Feustel of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

A Russian MI-8 helicopter leaves the Soyuz MS-08 spacecraft landing site after it the capsule landed with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA, Roscosmos, and Russian Search and Rescue teams arrive at the Zhezkazgan Airport in Kazakhstan to be in place for the Soyuz MS-08 spacecraft landing with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian Search and Rescue teams arrive at the Soyuz MS-08 spacecraft shortly after it landed with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian MI-8 pilots scan the horizon for the Soyuz MS-08 spacecraft in the predicted landing zone near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. The spacecraft landed with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos. Feustel, Arnold, and Artemyev returned to Earth after having spent 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Commander Drew Feustel of NASA rests outside the Soyuz Capsule after he, Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA is helped into a helicopter shortly after he, Expedition 56 Commander Drew Feustel of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos landed in their Soyuz MS-08 spacecraft near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Commander Drew Feustel of NASA rests outside the Soyuz Capsule after he, Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA is helped out of the Soyuz MS-08 spacecraft just minutes after he, Expedition 56 Commander Drew Feustel of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA arrives at the Karaganda Airport in Kazakhstan airport after he, Expedition 56 Commander Drew Feustel of NASA and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos landed in their Soyuz MS-08 spacecraft in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Commander Drew Feustel of NASA is helped out of the Soyuz MS-08 spacecraft just minutes after he, Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA, left, Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, center, and Expedition 56 Commander Drew Feustel of NASA sit in chairs outside the Soyuz MS-08 spacecraft after they landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA is carried to a medical tent shortly after he, Expedition 56 Commander Drew Feustel of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos landed in their Soyuz MS-08 spacecraft near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Commander Drew Feustel of NASA arrives at the Karaganda Airport in Kazakhstan airport after he, Expedition 56 Flight Engineer Ricky Arnold of NASA and, Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos landed in their Soyuz MS-08 spacecraft in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA signs photos inside a helicopter after being flown form the Soyuz MS-08 landing zone to the Karaganda Airport in Kazakhstan Thursday, Oct. 4, 2018. Arnold, Expedition 56 Commander Drew Feustel of NASA and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos returned to Earth after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Commander Drew Feustel of NASA is helped out of the Soyuz MS-08 spacecraft just minutes after he, Expedition 56 Flight Engineer Ricky Arnold of NASA, and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

A pilot parachute for the Soyuz MS-08 spacecraft lands behind a support helicopter at the landing site of Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA is helped out of the Soyuz MS-08 spacecraft just minutes after he, Expedition 56 Commander Drew Feustel of NASA, and Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos signs the outside of the Soyuz MS-08 spacecraft just minutes after he, Expedition 56 Commander Drew Feustel of NASA, and Flight Engineer Ricky Arnold of NASA, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

A Russian Search and Rescue AN-12 aircraft takes off from the Zhezkazgan Airport in Kazakhstan in support of the Soyuz MS-08 spacecraft landing with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Officials, family, and friends gather to welcome home Expedition 56 Soyuz Commander Oleg Artemyev of Roscosmos, right, after he and NASA astronauts Drew Feustel and Flight Engineer Ricky Arnold landed their Soyuz MS-08 capsule near the town of Zhezkazgan, Kazakhstan on Friday, Oct. 5, 2018. Artemyev, Feustel, and Arnold are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian Search and Rescue teams work around the Soyuz MS-08 spacecraft shortly after it landed with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian Search and Rescue teams arrive at the Soyuz MS-08 spacecraft shortly after it landed with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian Search and Rescue teams arrive at the Soyuz MS-08 spacecraft shortly after it landed with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian MI-8 helicopters wait at the Zhezkazgan Airport in Kazakhstan to deploy to the Soyuz MS-08 spacecraft landing with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA, Roscosmos, and Russian Search and Rescue teams at the Zhezkazgan Airport in Kazakhstan prepare for the Soyuz MS-08 spacecraft landing with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian Search and Rescue teams arrive at the Soyuz MS-08 spacecraft shortly after it landed with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz MS-08 spacecraft is seen as it lands with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian Orthodox Priest, Father Alexander, watches over the landing zone after the Soyuz MS-08 spacecraft landed with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA, left, Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, center, and Expedition 56 Commander Drew Feustel of NASA lift their helmet visors after they landed inside their Soyuz MS-08 spacecraft near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA Director for Human Space Flight Programs, Russia, Chad Rowe departs an AN-26 aircraft at the Zhezkazgan Airport in Kazakhstan to be in place for the Soyuz MS-08 spacecraft landing with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA, Roscosmos and Russian Search and Rescue teams board an AN-26 aircraft at the Karaganda Airport in Kazakhstan and fly to Zhezkazgan to be in place for the Soyuz MS-08 spacecraft landing with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut and Astronaut Office Representative Shannon Walker looks out the window while onboard an AN-26 aircraft taking her and other support personnel to the Zhezkazgan Airport in Kazakhstan for the Soyuz MS-08 spacecraft landing with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian support personnel work around the Soyuz MS-08 spacecraft shortly after it landed with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA Deputy International Space Station Program Manager Dan Hartman, left, NASA astronaut and Astronaut Office Representative Shannon Walker, center, and NASA Director for Human Space Flight Programs, Russia, Chad Rowe attend a NASA, Roscosmos, and Russian Search and Recovery Forces meeting to discuss the readiness for the landing of the Expedition 56 crew, Tuesday, Oct. 2, 2018. Expedition 56 crew members Drew Feustel and Ricky Arnold of NASA, along with Oleg Artemyev of Roscosmos are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Head of the Search-and-Rescue Department of Rosaviatsiya (Russian Federal Agency for Air Transport) Sergey A. Prusov leads a meeting with NASA and Roscosmos to discuss the readiness for the landing of Expedition 56 crew members Drew Feustel and Ricky Arnold of NASA, along with Oleg Artemyev of Roscosmos Tuesday, Oct. 2, 2018, at the Cosmonaut Hotel in Karaganda, Kazakhstan. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA and Roscosmos team members, along with Russian Search and Recovery Forces, meet at the Cosmonaut Hotel in Karaganda, Kazakhstan to discuss the readiness for the landing of Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos Tuesday, Oct. 2, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA and Roscosmos team members, along with Russian Search and Recovery Forces, meet at the Cosmonaut Hotel in Karaganda, Kazakhstan to discuss the readiness for the landing of Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos Tuesday, Oct. 2, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Deputy Head of the Search-and-Rescue Department of Rosaviatsiya (Russian Federal Air Transport Agency) Aleksey Lukiyanov gives a report during a meeting of NASA, Roscosmos and Russian Search and Recovery Forces to review the readiness for the landing of Expedition 56 crew members Drew Feustel and Ricky Arnold of NASA, along with Oleg Artemyev of Roscosmos Tuesday, Oct. 2, 2018, at the Cosmonaut Hotel in Karaganda, Kazakhstan. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Head of the Search-and-Rescue Department of Rosaviatsiya (Russian Federal Agency for Air Transport) Sergey A. Prusov listens as he leads a meeting with NASA and Roscosmos to discuss the readiness for the landing of Expedition 56 crew members Drew Feustel and Ricky Arnold of NASA, along with Oleg Artemyev of Roscosmos Tuesday, Oct. 2, 2018, at the Cosmonaut Hotel in Karaganda, Kazakhstan. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA Director for Human Space Flight Programs, Russia, Chad Rowe, left, with the support of NASA Interpreter Evgeny Sokol, gives a report during a meeting of NASA, Roscosmos and Russian Search and Recovery Forces to review the readiness for the landing of Expedition 56 crew members Drew Feustel and Ricky Arnold of NASA, along with Oleg Artemyev of Roscosmos Tuesday, Oct. 2, 2018, at the Cosmonaut Hotel in Karaganda, Kazakhstan. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos attends a Karaganda Airport welcome ceremony in Kazakhstan on Thursday, Oct. 4, 2018. Artemyev returned to Earth after 197 days in space with Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA Flight Surgeon Joe Schmid, left, looks inside the Soyuz MS-08 spacecraft to monitor Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 56 Flight Engineer Ricky Arnold of NASA restss in a helicopter as Russian Nurse Artiom Kharchikov, left, and NASA Flight Surgeon Steven Piper, right look after him near the town of Zhezkazgan, Kazakhstan on Thursday, Oct. 4, 2018. Arnold, Expedition 56 Commander Drew Feustel of NASA and Expedition 56 Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos returned to Earth after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Matryoshka Dolls depicting Flight Engineer Ricky Arnold of NASA, left, Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos, center, and Expedition 56 Commander Drew Feustel of NASA are seen at a Karaganda Airport welcome ceremony in Kazakhstan on Thursday, Oct. 4, 2018. Feustel, Arnold, and Artemyev are returning after 197 days in space where they served as members of the Expedition 55 and 56 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut and Director of Operations, Star City, Russia, Joe Acaba takes a photograph of NASA astronaut and Astronaut Office Representative Shannon Walker after they each planted a tree during a traditional ceremony at the Cosmonaut Hotel in Karaganda, Kazakhstan, Tuesday, Oct. 2, 2018. Acaba and Walker are in Karaganda to help support the Expedition 56 crew Soyuz landing from the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut and Director of Operations, Star City, Russia, Joe Acaba prepares to plant a tree during a traditional ceremony at the Cosmonaut Hotel in Karaganda, Kazakhstan, Tuesday, Oct. 2, 2018. Acaba is in Karaganda to help support the Expedition 56 crew Soyuz landing from the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut and Astronaut Office Representative Shannon Walker plants a tree with the help of Russian Orthodox Priest, Father Alexander, during a traditional ceremony at the Cosmonaut Hotel in Karaganda, Kazakhstan, Tuesday, Oct. 2, 2018. Walker is in Karaganda to help support the Expedition 56 crew Soyuz landing from the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Trees planted by astronauts and cosmonauts that have flown in space are seen in front of the Cosmonaut Hotel in Karaganda, Kazakhstan, Tuesday, Oct. 2, 2018. NASA and Roscosmos team members, along with Russian Search and Recovery Forces, meet in Karaganda to discuss the readiness for the landing of Expedition 56 Commander Drew Feustel and Flight Engineer Ricky Arnold of NASA, along with Flight Engineer and Soyuz Commander Oleg Artemyev of Roscosmos. Photo Credit: (NASA/Bill Ingalls)

iss056e032686 (June 206, 2018) --- The French capital of Paris, the Seine River and Bois de Boulogne (the dark patch of land surrounded by the Seine) feature prominently in this photograph taken by an Expedition 56 crew member aboard the International Space Station.

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold is introduced to speak about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold poses for a photo after presenting the Challenger Center with a montage of images from his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold poses for a photo with students after speaking with them about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold presents the Challenger Center with a montage of images from his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold poses for a photo with students after speaking with them about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Ricky Arnold is seen during a talk about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

Students are seen in the audience as NASA astronaut Ricky Arnold speaks about his time onboard the International Space Station (ISS) during Expeditions 55 and 56, Friday, May 3, 2019 at the Challenger Center in Lanham, MD. During Expedition 55/56, Arnold completed three spacewalks for a total of 19.5 hours outside the space station, and concluded his 197 day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in Oct. 2018. He also flew to the space station on shuttle mission STS-119 to deliver the final pair of power-generating solar array wings. Photo Credit: (NASA/Aubrey Gemignani)

KENNEDY SPACE CENTER, FLA. -- Orbiter Endeavour drops through scattered clouds to land on Runway 15 at the KSC Shuttle Landing Facility, completing mission STS-108. After a mission-elapsed time of 11 days, 19 hours and 35 minutes, the landing is the 57th at KSC in the history of the program. Main gear touchdown occurred at 12:55:10 p.m. EST (17:55:10 GMT), nose gear touchdown at 12:55:23 p.m. (17:55:23 GMT) , wheel stop at 12:56:13 p.m. (17:56:13 GMT). STS-108 was the 12th mission to the International Space Station. This mission was the 107th flight in the Shuttle program and the 17th flight for the orbiter. Endeavour carries both the mission crew and the Expedition 3 crew - Commander Frank Culbertson and cosmonauts Vladimir Dezhurov and Mikhail Tyurin - who are returning to Earth after 129 days in space on the Space Station

KENNEDY SPACE CENTER, FLA. -- A safety vehicle waits near Runway 15 at the Shuttle Landing Facility as orbiter Endeavour approaches for a landing, completing mission STS-108 after a mission-elapsed time of 11 days, 19 hours and 35 minutes. The landing is the 57th at KSC in the history of the program. Main gear touchdown occurred at 12:55:10 p.m. EST (17:55:10 GMT), nose gear touchdown at 12:55:23 p.m. (17:55:23 GMT) , wheel stop at 12:56:13 p.m. (17:56:13 GMT). STS-108 was the 12th mission to the International Space Station. This mission was the 107th flight in the Shuttle program and the 17th flight for the orbiter. Endeavour carries both the mission crew and the Expedition 3 crew - Commander Frank Culbertson and cosmonauts Vladimir Dezhurov and Mikhail Tyurin - who are returning to Earth after 129 days in space on the Space Station

KENNEDY SPACE CENTER, FLA. -- Orbiter Endeavour drops through scattered clouds to land on Runway 15 at the KSC Shuttle Landing Facility, completing mission STS-108. After a mission-elapsed time of 11 days, 19 hours and 35 minutes, the landing is the 57th at KSC in the history of the program. Main gear touchdown occurred at 12:55:10 p.m. EST (17:55:10 GMT), nose gear touchdown at 12:55:23 p.m. (17:55:23 GMT) , wheel stop at 12:56:13 p.m. (17:56:13 GMT). STS-108 was the 12th mission to the International Space Station. This mission was the 107th flight in the Shuttle program and the 17th flight for the orbiter. Endeavour carries both the mission crew and the Expedition 3 crew - Commander Frank Culbertson and cosmonauts Vladimir Dezhurov and Mikhail Tyurin - who are returning to Earth after 129 days in space on the Space Station