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Alabama Gov. Robert Bentley signs a proclamation declaring April 18, 2013, "NASA Day in Alabama." Looking on, from left, are Marshall Space Flight Center Director Patrick Scheuermann, astronauts Kathleen "Kate" Rubins and Jack Fischer, and State Sen. Bill Holtzclaw of Madison, who represents Madison and Limestone counties. 1300243

Expedition 39 flight controllers on console during SpaceX cargo rendezvous and grappling. Flight Director: Matt Abbott. Capcoms: Jack Fischer and Randy Bresnik. Photo Date: April 20, 2014. Location: Building 30 - FCR-1. Photographer: Robert Markowitz jsc2014e036997

Expedition 39 flight controllers on console during SpaceX cargo rendezvous and grappling. Flight Director: Matt Abbott. Capcoms: Jack Fischer and Randy Bresnik. Photo Date: April 20, 2014. Location: Building 30 - FCR-1. Photographer: Robert Markowitz jsc2014e037033

Expedition 39 flight controllers on console during SpaceX cargo rendezvous and grappling. Flight Director: Matt Abbott. Capcoms: Jack Fischer and Randy Bresnik. Photo Date: April 20, 2014. Location: Building 30 - FCR-1. Photographer: Robert Markowitz jsc2014e037038

Expedition 39 flight controllers on console during SpaceX cargo rendezvous and grappling. Flight Director: Matt Abbott. Capcoms: Jack Fischer and Randy Bresnik. Photo Date: April 20, 2014. Location: Building 30 - FCR-1. Photographer: Robert Markowitz jsc2014e037036

Expedition 39 flight controllers on console during SpaceX cargo rendezvous and grappling. Flight Director: Matt Abbott. Capcoms: Jack Fischer and Randy Bresnik. Photo Date: April 20, 2014. Location: Building 30 - FCR-1. Photographer: Robert Markowitz jsc2014e037041

Expedition 39 flight controllers on console during SpaceX cargo rendezvous and grappling. Flight Director: Matt Abbott. Capcoms: Jack Fischer and Randy Bresnik. Photo Date: April 20, 2014. Location: Building 30 - FCR-1. Photographer: Robert Markowitz jsc2014e037034

Expedition 39 flight controllers on console during SpaceX cargo rendezvous and grappling. Flight Director: Matt Abbott. Capcoms: Jack Fischer and Randy Bresnik. Photo Date: April 20, 2014. Location: Building 30 - FCR-1. Photographer: Robert Markowitz jsc2014e036991

Expedition 39 flight controllers on console during SpaceX cargo rendezvous and grappling. Flight Director: Matt Abbott. Capcoms: Jack Fischer and Randy Bresnik. Photo Date: April 20, 2014. Location: Building 30 - FCR-1. Photographer: Robert Markowitz jsc2014e037025

CAPE CANAVERAL, Fla. – NASA astronauts tour the Neil Armstrong Operations and Checkout Building high bay at NASA's Kennedy Space Center in Florida, and view the Orion forward bay cover for Exploration Flight Test-1. From left, are Jack Fischer, Scott Tingle, Katie Rubins and Mark Vande Hei. Orion is the exploration spacecraft designed to carry astronauts to destinations not yet explored by humans, including an asteroid and Mars. It will have emergency abort capability, sustain the crew during space travel and provide safe re-entry from deep space return velocities. The first unpiloted test flight of Orion is scheduled to launch in 2014 atop a United Launch Alliance Delta IV rocket and in 2018 on NASA’s Space Launch System rocket. For more information, visit www.nasa.gov/orion. Photo credit: Dimitri Gerondidakis KSC-2014-3632

CAPE CANAVERAL, Fla. – NASA astronauts tour the Neil Armstrong Operations and Checkout Building high bay at NASA's Kennedy Space Center in Florida, and view the Orion forward bay cover for Exploration Flight Test-1. From left, are Jack Fischer, Mark Vande Hei, Katie Rubins and Scott Tingle. At far right is Jules Schneider, Lockheed Martin senior manager. Orion is the exploration spacecraft designed to carry astronauts to destinations not yet explored by humans, including an asteroid and Mars. It will have emergency abort capability, sustain the crew during space travel and provide safe re-entry from deep space return velocities. The first unpiloted test flight of Orion is scheduled to launch in 2014 atop a United Launch Alliance Delta IV rocket and in 2018 on NASA’s Space Launch System rocket. For more information, visit www.nasa.gov/orion. Photo credit: Dimitri Gerondidakis KSC-2014-3634

CAPE CANAVERAL, Fla. – NASA astronauts tour the Neil Armstrong Operations and Checkout Building high bay at NASA's Kennedy Space Center in Florida, and view the Orion forward bay cover for Exploration Flight Test-1. From left, are Jack Fischer, Mark Vande Hei, Katie Rubins and Scott Tingle. Orion is the exploration spacecraft designed to carry astronauts to destinations not yet explored by humans, including an asteroid and Mars. It will have emergency abort capability, sustain the crew during space travel and provide safe re-entry from deep space return velocities. The first unpiloted test flight of Orion is scheduled to launch in 2014 atop a United Launch Alliance Delta IV rocket and in 2018 on NASA’s Space Launch System rocket. For more information, visit www.nasa.gov/orion. Photo credit: Dimitri Gerondidakis KSC-2014-3633

CAPE CANAVERAL, Fla. – NASA astronauts tour the Neil Armstrong Operations and Checkout Building high bay at NASA's Kennedy Space Center in Florida, and view the Orion forward bay cover for Exploration Flight Test-1. Holding the door is Jack Fischer. Going through the entrance are Katie Rubins and Scott Tingle. Orion is the exploration spacecraft designed to carry astronauts to destinations not yet explored by humans, including an asteroid and Mars. It will have emergency abort capability, sustain the crew during space travel and provide safe re-entry from deep space return velocities. The first unpiloted test flight of Orion is scheduled to launch in 2014 atop a United Launch Alliance Delta IV rocket and in 2018 on NASA’s Space Launch System rocket. For more information, visit www.nasa.gov/orion. Photo credit: Dimitri Gerondidakis KSC-2014-3635

CAPE CANAVERAL, Fla. – NASA astronauts tour the Launch Abort System Facility at NASA's Kennedy Space Center in Florida. From left, are Scott Tingle, Jack Fischer, Mark Vande Hei and Katie Rubins. They are standing near the Ogive panels for the Orion Launch Abort System. During processing, the Ogive panels will enclose and protect the Orion spacecraft for Exploration Flight Test-1 and attach to the Launch Abort System. Orion is the exploration spacecraft designed to carry astronauts to destinations not yet explored by humans, including an asteroid and Mars. It will have emergency abort capability, sustain the crew during space travel and provide safe re-entry from deep space return velocities. The first unpiloted test flight of Orion is scheduled to launch in 2014 atop a United Launch Alliance Delta IV rocket and in 2018 on NASA’s Space Launch System rocket. For more information, visit www.nasa.gov/orion. Photo credit: Dimitri Gerondidakis KSC-2014-3637

CAPE CANAVERAL, Fla. – NASA astronauts tour the Launch Abort System Facility at NASA's Kennedy Space Center in Florida. From left, are Scott Tingle, Katie Rubins, Mark Vande Hei and Jack Fischer. Behind them is the Orion Launch Abort System for Exploration Flight Test 1. Orion is the exploration spacecraft designed to carry astronauts to destinations not yet explored by humans, including an asteroid and Mars. It will have emergency abort capability, sustain the crew during space travel and provide safe re-entry from deep space return velocities. The first unpiloted test flight of Orion is scheduled to launch in 2014 atop a United Launch Alliance Delta IV rocket and in 2018 on NASA’s Space Launch System rocket. For more information, visit www.nasa.gov/orion. Photo credit: Dimitri Gerondidakis KSC-2014-3636

Official Astronaut Portrait of Jack Fischer in an EMU. Photo Date: February 25, 2016. Location: Building 8, Room 183 - Photo Studio. Photographer: Robert Markowitz

At the launch site in Baikonur, Kazakhstan, Expedition 50-51 backup crewmembers Paolo Nespoli of the European Space Agency (left), Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, center) and Jack Fischer of NASA (right) smile for a selfie Nov. 1 upon their arrival following a flight from their training base in Star City, Russia. They are the backups to Peggy Whitson of NASA, Oleg Novitskiy of the Russian Federal Space Agency (Roscosmos) and Thomas Pesquet of the European Space Agency, who will launch Nov. 18, Baikonur time, on the Soyuz MS-03 spacecraft for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e179936

At the launch site in Baikonur, Kazakhstan, Expedition 50-51 backup crewmembers Paolo Nespoli of the European Space Agency (left), Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, center) and Jack Fischer of NASA (right) smile as they are greeted Nov. 1 upon their arrival following a flight from their training base in Star City, Russia. They are the backups to Peggy Whitson of NASA, Oleg Novitskiy of the Russian Federal Space Agency (Roscosmos) and Thomas Pesquet of the European Space Agency, who will launch Nov. 18, Baikonur time, on the Soyuz MS-03 spacecraft for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e179935

At the Gagarin Cosmonaut Training Center in Star City, Russia, the Expedition 50-51 prime and backup crewmembers pose for pictures Nov. 1 in front of Lenin’s Statue before departing for their launch site in Baikonur, Kazakhstan. From left to right are backup crewmembers Paolo Nespoli of the European Space Agency, Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) and Jack Fischer of NASA and prime crewmembers Peggy Whitson of NASA, Oleg Novitskiy of the Russian Federal Space Agency (Roscosmos) and Thomas Pesquet of the European Space Agency. Whitson, Novitskiy and Pesquet will launch Nov. 18, Baikonur time, on the Soyuz MS-03 spacecraft for a six-month mission on the International Space Station. NASA/Stephanie Stoll jsc2016e179947

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 50-51 backup crewmember Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) peers out of the hatch to the Soyuz MS-03 spacecraft Nov. 2 during pre-launch training. Yurchikhin, Paolo Nespoli of the European Space Agency (left) and Jack Fischer of NASA (right) will back up the prime crewmembers, Peggy Whitson of NASA, Oleg Novitskiy of Roscosmos and Thomas Pesquet of the European Space Agency, who will launch Nov. 18, Baikonur time, for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e180333

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 50-51 backup crewmember Paolo Nespoli of the European Space Agency climbs aboard the Soyuz MS-03 spacecraft Nov.2 during pre-launch training. Nespoli, Jack Fischer of NASA and Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) will back up the prime crewmembers, Peggy Whitson of NASA, Oleg Novitskiy of Roscosmos and Thomas Pesquet of the European Space Agency, who will launch Nov. 18, Baikonur time, for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e180323

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 50-51 backup crewmember Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) climbs aboard the Soyuz MS-03 spacecraft Nov. 2 during pre-launch training. Yurchikhin, Paolo Nespoli of the European Space Agency and Jack Fischer of NASA will back up the prime crewmembers, Peggy Whitson of NASA, Oleg Novitskiy of Roscosmos and Thomas Pesquet of the European Space Agency, who will launch Nov. 18, Baikonur time, for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e180321

Under leaden skies outside their Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, NASA’s Expedition 50 prime and backup crewmembers raise the American flag Nov. 3 during their traditional ceremony. Peggy Whitson of NASA (right) was joined by her backup, Jack Fischer (left). Whitson, Oleg Novistkiy of the Russian Federal Space Agency (Roscosmos) and Thomas Pesquet of the European Space Agency will launch Nov. 18, Baikonur time, on the Soyuz MS-03 spacecraft for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e180629

Under leaden skies outside their Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, the Expedition 50 prime and backup crewmembers pose for photos Nov. 3 during their traditional flag-raising ceremony. From left to right are prime crewmembers Peggy Whitson of NASA, Oleg Novistkiy of the Russian Federal Space Agency (Roscosmos) and Thomas Pesquet of the European Space Agency and backup crewmembers Paolo Nespoli of the European Space Agency, Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA. Whitson, Novitskiy and Pesquet will launch Nov. 18, Baikonur time, on the Soyuz MS-03 spacecraft for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e180626

At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, the Expedition 50-51 prime and backup crewmembers pose for pictures Nov. 10 during their prelaunch activities. From left to right are prime crewmembers Peggy Whitson of NASA, Oleg Novitskiy of the Russian Federal Space Agency (Roscosmos) and Thomas Pesquet of the European Space Agency and backup crewmembers Paolo Nespoli of the European Space Agency, Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA. Novitskiy, Whitson and Pesquet will launch Nov. 18, Baikonur time, on the Soyuz MS-03 spacecraft for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e181839

At their Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 50-51 backup crewmembers Paolo Nespoli of the European Space Agency (left), Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, center) and Jack Fischer of NASA (right) review flight plans with trainers Nov. 10 as part of preflight activities. They are backups to the prime crewmembers, Peggy Whitson of NASA, Oleg Novitskiy of Roscosmos and Thomas Pesquet of the European Space Agency, who will launch Nov. 18, Baikonur time, on the Soyuz MS-03 spacecraft for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e181829

At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 50-51 crewmember Thomas Pesquet of the European Space Agency (second from left) plants a tree bearing his name in traditional ceremonies Nov. 10 as his crewmates, Oleg Novitskiy of the Russian Federal Space Agency (Roscosmos, far left) and Peggy Whitson of NASA (third from left) look on. Joining them on the right are backup crewmembers Paolo Nespoli of the European Space Agency, Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA. Novitskiy, Whitson and Pesquet will launch Nov. 18, Baikonur time, on the Soyuz MS-03 spacecraft for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e181837

At their Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 50-51 backup crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) share a light-hearted moment as they review flight plans Nov. 10 as part of preflight training. They are backups to the prime crewmembers, Peggy Whitson of NASA, Oleg Novitskiy of Roscosmos and Thomas Pesquet of the European Space Agency, who will launch Nov. 18, Baikonur time, on the Soyuz MS-03 spacecraft for a six-month mission on the International Space Station. NASA/Alexander Vysotsky jsc2016e181827

jsc2017e038543 (March 30, 2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 backup crewmember Randy Bresnik of NASA (right) signs in for the start of final crew qualification exams March 30 as his crewmate, Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, left) looks on. They are backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Credit: NASA/Rob Navias jsc2017e038543

jsc2017e038548 (March 30, 2017) --- At the Gagarin Cosmonaut Training Center in Star city, Russia, Expedition 51 crewmember Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) strikes a reflective pose March 30 as he prepares to enter a Russian segment systems simulator as part of final crew qualification exams. Yurchikhin and Jack Fischer of NASA will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Credit: NASA/Rob Navias jsc2017e038548

jsc2017e038541 (March 30, 2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, left) and Randy Bresnik of NASA (right) report to State Commission officials March 30 for the start of two days of final crew qualification exams. They are backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Credit: NASA/Rob Navias jsc2017e038541

jsc2017e038546 (March 30, 2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmember Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) applauds as his crewmate, Jack Fischer of NASA (right) signs in March 30 for the start of final crew qualification exams. They will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Credit: NASA/Rob Navias jsc2017e038546

jsc2017e038542 (March 30, 2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 backup crewmember Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, left) signs in for the start of final crew qualification exams March 30 as his crewmate, Randy Bresnik of NASA (right) looks on. They are backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Credit: NASA/Rob Navias jsc2017e038542

jsc2017e038543 (March 30, 2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, left) and Randy Bresnik of NASA (right) pose for pictures in front of a Soyuz training mockup March 30 at the start of final crew qualification exams. They are backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Credit: NASA/Rob Navias jsc2017e038544

jsc2017e038549 (March 30, 2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, trainers keep tabs on the work of Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) and Jack Fischer of NASA through a bank of video monitors and data displays March 30 as the crew conducted the first of two days of final qualification exams. Yurchikhin and Fischer will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Credit: NASA/Rob Navias jsc2017e038549

jsc2017e038545 (March 30, 2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 backup crewmember Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) waits to board a Soyuz training mockup March 30 as his crewmate, Randy Bresnik of NASA, works inside as part of final crew qualification exams. They are backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Credit: NASA/Rob Navias jsc2017e038545

jsc2017e038912 (03/31/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, , Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures in front of a Soyuz spacecraft mockup March 31 during the second of two days of final qualification exams. Yurchikhin and Fischer will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Expedition 51. Photo: Rob Navias/NASA. jsc2017e038912

jsc2017e038909 (03/31/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmember Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) smiles as his crew mate, Jack Fischer of NASA (right) signs in March 31 for the second of two days of of final qualification exams. Yurchikhin and Fischer will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Expedition 51. Photo: Rob Navias/NASA. jsc2017e038909

jsc2017e038908 (03/31/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) report to Russian state commission officials March 31 at the start of the second of two days of final qualification exams. Yurchikhin and Fischer will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Expedition 51 Photo: Rob Navias/NASA. jsc2017e038908

jsc2017e038910 (03/31/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) field questions from reporters in front of a Soyuz spacecraft mockup March 31 during the second of two days of final qualification exams. Yurchikhin and Fischer will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Expedition 51. Photo: Rob Navias/NASA. jsc2017e038910

jsc2017e039452 (04/03/2017) --- At the Gagarin Museum at the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 prime crewmember Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, front row, left) signs a commemorative book in a traditional ceremony April 3. Looking on are his crewmate, Jack Fischer of NASA (front row, right) and the backup crewmembers in the back row, Sergey Ryazanskiy of Roscosmos (back row, left) and Randy Bresnik of NASA (back row, right). Yurchikhin and Fischer will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Photo: NASA/Rob Navias. jsc2017e039452

jsc2017e039458 (04/03/2017) --- At the Kremlin Wall in Red Square in Moscow, Expedition 51 crewmember Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) lays flowers at the site where Russian space icons are interred during traditional ceremonies April 3. Yurchikhin and Jack Fischer of NASA will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a four and a half month mission on the International Space Station. Photo: NASA/Rob Navias. jsc2017e039458

jsc2017e039768 (04/05/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) share a light moment April 5 as they prepared to fly to the launch site at the Baikonur Cosmodrome in Kazakhstan for final pre-launch preparations. Fischer and Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) will launch April 20 on the Soyuz MS-04 spacecraft from Baikonur for a four and a half month mission on the International Space Station. Photo: NASA/Rob Navias jsc2017e039768

jsc2017e039774 (04/05/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures April 5 before departing for their launch site at the Baikonur Cosmodrome in Kazakhstan for final pre-launch training. .Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft from Baikonur for a four and a half month mission on the International Space Station. Photo: NASA/Rob Navias jsc2017e039774

jsc2017e039900 (04/05/2017) --- Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, left) and Randy Bresnik of NASA are greeted by Russian space officials after arriving at the launch site in Baikonur, Kazakhstan April 5 for final pre-launch training after a flight from the Gagarin Cosmonaut Training Center in Star City, Russia. They are serving as backups to Jack Fischer of NASA and Fyodor Yurchikhin of Roscosmos who will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Photo: NASA/Victor Zelentsov jsc2017e039900

jsc2017e039776 (04/05/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) answer reporters’ questions April 5 before departing for their launch site at the Baikonur Cosmodrome in Kazakhstan for final pre-launch training. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft from Baikonur for a four and a half month mission on the International Space Station. Photo: NASA/Rob Navias jsc2017e039776

jsc2017e039777 (04/05/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, the statue of Vladimir Lenin serves as a backdrop as Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) answer reporters’ questions April 5 before departing for their launch site at the Baikonur Cosmodrome in Kazakhstan for final pre-launch training. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft from Baikonur for a four and a half month mission on the International Space Station. Photo: NASA/Rob Navi jsc2017e039777

jsc2017e039898 (04/05/2017) --- Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA are greeted by Russian space officials at their launch site in Baikonur, Kazakhstan April 5 after a flight from the Gagarin Cosmonaut Training Center in Star City, Russia for final pre-launch training. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Photo: NASA/Victor Zelentsov jsc2017e039898

jsc2017e039897 (04/05/2017) --- Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) arrive at their launch site in Baikonur, Kazakhstan April 5 for final pre-launch training after a flight from the Gagarin Cosmonaut Training Center in Star City, Russia. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Photo: NASA/Victor Zelentsov jsc2017e039897

jsc2017e039773 (04/05/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, the statue of Vladimir Lenin serves as a backdrop as Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures April 5 before departing for their launch site at the Baikonur Cosmodrome in Kazakhstan for final pre-launch training. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft from Baikonur for a four and a half month mission on the International Space Station. Photo: NASA/Rob Navias. jsc2017e039773

jsc2017e039775 (04/05/2017) --- At the Gagarin Cosmonaut Training Center in Star City, Russia, the Expedition 51 prime and backup crewmembers pose for pictures April 5 before flying to their launch site at the Baikonur Cosmodrome in Kazakhstan for final pre-launch preparations. From left to right are backup crewmembers Randy Bresnik of NASA and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) and prime crewmembers Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft from Baikonur for a four and a half month mission on the International Space Station. Photo: NASA/Rob Navias jsc2017e039775

jsc2017e040288 (April 6, 2017) --- In the Integration Building at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, front row, left) and Jack Fischer of NASA (front row, right) pose for pictures April 6 with their backups, Sergey Ryazanskiy of Roscosmos (back row, left) and Randy Bresnik of NASA (back row, right) as part of pre-launch training preparations. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e040288

jsc2017e040292 (April 6, 2017) --- In the Integration Building at the Baikonur Cosmodrome in Kazakhstan, backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, left) and Randy Bresnik of NASA (right) pose for pictures April 6 in front of the Soyuz MS-04 spacecraft as part of pre-launch preparations. Ryazanskiy and Bresnik are serving as backups to the prime crew, Jack Fischer of NASA and Fyodor Yurchikhin of Roscosmos, who will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e040292

jsc2017e040289 (April 6, 2017) --- In the Integration Building at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures April 6 in front of their Soyuz MS-04 spacecraft as part of pre-launch training preparations. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e040289

jsc2017e040282 (April 6, 2017) --- In the Integration Building at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures April 6 in front of their Soyuz MS-04 spacecraft as part of pre-launch preparations. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e040282

jsc2017e040284 (April 6, 2017) --- In the Integration Building at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, left) and Randy Bresnik of NASA (right) pose for pictures April 6 as part of pre-launch preparations. Ryazanskiy and Bresnik are serving as backups to the prime crew, Jack Fischer of NASA and Fyodor Yurchikhin of Roscosmos, who will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e040284

jsc2017e040293 (April 6, 2017) --- In the Integration Building at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures April 6 with their Russian Sokol launch and entry suits as part of pre-launch training preparations. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e040293

jsc2017e040345 (April 7, 2017) --- In Baikonur, Kazakhstan, Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, left) and Randy Bresnik of NASA pay tribute at the statue of Sergey Korolev, the iconic Russian space designer, during traditional pre-launch ceremonies April 7. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040345

jsc2017e040350 (April 7, 2017) --- In Baikonur, Kazakhstan, Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, center) and Randy Bresnik of NASA (right) sample local tea in a traditional Kazakh “yurt” or tent April 7 while wearing traditional Kazakh robes and hats. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040350

jsc2017e040339 (April 7, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, the Expedition 51 prime and backup crewmembers attend flag-raising ceremonies April 7 as part of their pre-launch activities. From left to right are prime crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) and Jack Fischer of NASA and backup crewmembers Sergey Ryazanskiy of Roscosmos and Randy Bresnik of NASA. Yurchikhin and Fischer will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040339

jsc2017e040348 (April 7, 2017) --- In Baikonur, Kazakhstan, Expedition 51 backup crewmember Randy Bresnik of NASA (right) takes pictures of a traditional Kazakh “yurt” or tent, while his backup crewmate, Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) listens to a description of the display in a local museum during pre-launch activities April 7. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040348

jsc2017e040346 (April 7, 2017) --- In Baikonur, Kazakhstan, Expedition 51 backup crewmembers Randy Bresnik of NASA (second from the left) and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, second from the right) are shown a map of Baikonur at a local museum April 7 during pre-launch activities. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040346

jsc2017e040347 (April 7, 2017) --- In Baikonur, Kazakhstan, Expedition 51 backup crewmembers Randy Bresnik of NASA (left) and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, right) are shown a model of a Soyuz rocket at a local museum April 7 during pre-launch activities. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040347

jsc2017e040344 (April 7, 2017) --- In Baikonur, Kazakhstan, Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, left) and Randy Bresnik of NASA (right) pose for pictures at the statue of Yuri Gagarin, the first human to fly in space, during traditional pre-launch ceremonies April 7. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040344

jsc2017e040343 (April 7, 2017) --- In Baikonur, Kazakhstan, Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) and Randy Bresnik of NASA pay tribute at the statue of Yuri Gagarin, the first human to fly in space, during traditional pre-launch ceremonies April 7. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040343

jsc2017e040349 (April 7, 2017) --- In Baikonur, Kazakhstan, Expedition 51 backup crewmember Randy Bresnik of NASA (right) takes pictures of a traditional Kazakh “yurt” or tent, while his backup crewmate, Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) listens to a description of the display in a local museum during pre-launch activities April 7. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040349

jsc2017e040342 (April 7, 2017) --- Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, center) and Randy Bresnik of NASA (right) accept commemorative items from a local official in Baikonur, Kazakhstan April 7 as part of traditional pre-launch activities. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft from the Baikonur Cosmodrome for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e040342

jsc2017e043067 (April 13, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, center) and Jack Fischer of NASA (right) practice rendezvous techniques on a laptop simulator April 13 in preparation for their launch. Yurchikhin and Fischer will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e043067

jsc2017e043082 (April 13, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) answer reporters’ questions April 13 as part of pre-launch activities. In the foreground is backup crewmember Randy Bresnik of NASA. Fischer and Yurchikhin will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e043082

jsc2017e043078 (April 13, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures after planting a tree in Fischer’s name April 13 as part of traditional pre-launch activities. Fischer and Yurchikhin will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e043078

jsc2017e043079 (April 13, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures April 13 as part of traditional pre-launch activities. Fischer and Yurchikhin will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e043079

jsc2017e043069 (April 13, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 backup crewmembers Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, center) and Randy Bresnik of NASA (right) practice rendezvous techniques on a laptop simulator April 13 as part of pre-launch activities. Ryazanskiy and Bresnik are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e043069

jsc2017e043080 (April 13, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, the Expedition 51 prime and backup crewmembers pose for pictures April 13 as part of traditional pre-launch activities. From left to right are backup crewmembers Randy Bresnik of NASA and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) and prime crewmembers Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA. Fischer and Yurchikhin will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e043080

jsc2017e043068 (April 13, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, center) and Jack Fischer of NASA (right) practice rendezvous techniques on a laptop simulator April 13 in preparation for their launch. Yurchikhin and Fischer will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e043068

jsc2017e043083 (April 13, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) display commemorative items April 13 that will be used as “zero-G” mascot indicators in the Soyuz MS-04 descent module over their heads during launch and their ascent to orbit. Yurchikhin is holding several toys from his children and Fischer is holding an emblem of the MD Anderson Cancer Center in Houston, where his daughter, Sariah was treated. Fischer and Yurchikhin will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e043083

jsc2017e043081 (April 13, 2017) --- At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures next to a Soyuz rocket model April 13 as part of pre-launch activities. Fischer and Yurchikhin will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov jsc2017e043081

jsc2017e043853 (April 14, 2017) --- At the Baikonur Cosmodrome Museum in Kazakhstan, Expedition 51 crewmember Jack Fischer of NASA displays a “launch Key” during a tour of the facility April 14. The “launch key” is the device that triggers the engine ignition sequence at the launch pad for a Soyuz rocket launch. Fischer and Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) and Jack Fischer of NASA. Yurchikhin and Fischer will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Credit: .NASA/Victor Zelentsov jsc2017e043853

jsc2017e043845 (April 14, 2017) --- In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 backup crewmember Randy Bresnik of NASA enters the Soyuz MS-04 spacecraft April 14 during a final training session. Bresnik and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Credit: NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e043845

jsc2017e043849 (April 14, 2017) --- In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures April 14 in front of their Soyuz booster rocket. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Credit: NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e043849

jsc2017e043846 (April 14, 2017) --- In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) pose for pictures April 14 during a final inspection of the Soyuz MS-04 spacecraft. They will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Credit: NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e043846

jsc2017e043850 (April 14, 2017) --- In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) provide a “thumbs up” as they pose for pictures April 14 in front of their Soyuz booster rocket. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Credit: NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e043850

jsc2017e043854 (April 14, 2017) --- At the Baikonur Cosmodrome in Kazakhstan, the Expedition 51 prime and backup crewmembers pose for pictures April 14 in front of the cottage where Yuri Gagarin slept on the eve of his historic launch on April 12, 1961 to become the first human to fly in space. From left to right are backup crewmembers Randy Bresnik of NASA and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) and prime crewmembers Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA. Yurchikhin and Fischer will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Credit: NASA/Victor Zelentsov jsc2017e043854

jsc2017e043844 (April 14, 2017) --- In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 backup crewmembers Randy Bresnik of NASA (bottom) and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos, top) pose for pictures April 14 during a final inspection of the Soyuz MS-04 spacecraft. They are serving as backups to Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA, who will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. Credit: NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin jsc2017e043844