The families of Expedition 51 Flight Engineer Jack Fischer of NASA and Soyuz Commander Fyodor Yurchikhin of Roscosmos laugh together before watching the traditional door signing ceremony at the Cosmonaut Hotel prior to the Expedition 51 launch, Thursday, April 20, 2017 in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13pm April 20 Baikonur time, and will carry Yurchikhin and Fischer into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Expedition 51 backup crew member, Randy Bresnik of NASA, watches as the Soyuz MS-04 spacecraft arrives at the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will send Expedition 51 prime crew, Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA on a four and a half month mission aboard the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The train that will carry the Soyuz rocket to the launch pad is seen just before the door to the assembly building is opened on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz MS-04 spacecraft, scheduled to launch April 20 Baikonur time, will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 back up crew member, Soyuz Commander Sergey Ryazanskiy of Roscosmos, left, answers a question during a press conference held at the Cosmonaut Hotel in Baikonur, Kazakhstan on Wednesday, April 19, 2017. He is seen with Expedition 51 back up crew mate Randy Bresnik of NASA. The Expedition 51 prime crew is set to launch April 20 from the Baikonur Cosmodrome. Photo Credit: (NASA/Aubrey Gemignani)
The Expedition 51 backup crew, Soyuz Commander Sergey Ryazanskiy of Roscosmos, left, and Flight Engineer Randy Bresnik of NASA, right, are photographed in front of the Soyuz MS-04 spacecraft as it arrives at the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will send Expedition 51 prime crew, Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA on a four and a half month mission aboard the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
One of the gantry arms is seen before being closed around the Soyuz MS-04 spacecraft to secure the rocket, Monday, April 17, 2017 at launch pad 1 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is seen after the gantry arms closed around the rocket to secure it at the launch pad on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 crew members, Soyuz Commander Fyodor Yurchikhin of Roscosmos, left, and Flight Engineer Jack Fischer of NASA, right, wave farewell to family and friends as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station on Thursday, April 20, 2017 in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13PM April 20 Baikonur time and will send Yurchikhin and Fischer on a four and a half month mission aboard the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
Russian security is seen as the Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 crew members, Soyuz Commander Fyodor Yurchikhin of Roscosmos, front, and Flight Engineer Jack Fischer of NASA, back, wave farewell to family and friends as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station on Thursday, April 20, 2017 in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13PM April 20 Baikonur time and will send Yurchikhin and Fischer on a four and a half month mission aboard the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The gantry arms close around the Soyuz MS-04 spacecraft to secure the rocket at the launch pad on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The gantry arms close around the Soyuz MS-04 spacecraft to secure the rocket at the launch pad on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is seen at the Soyuz launch pad 1 just before it is raised into a vertical position Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The gantry arms close around the Soyuz MS-04 spacecraft to secure the rocket at the launch pad on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is raised into position on the launch pad Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The escape tower is seen as workers prepare to raise the Soyuz MS-04 spacecraft into the vertical position on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Russian security officers inspect the tracks before the Soyuz rocket is rolled out to the launch pad on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz MS-04 spacecraft, scheduled to launch April 20 Baikonur time, will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is raised into position on the launch pad Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is seen shortly after arriving at the launch pad by train on Monday, April 17, 2017, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is raised into position on the launch pad Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is seen after being raised into a vertical position on the launch pad Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The arm that raised the Soyuz MS-04 spacecraft into position on the launch pad is lowered, Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Flight Engineer Jack Fischer of NASA performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch in a Soyuz rocket with fellow crew mate, Soyuz Commander Fyodor Yurchikhin of Roscosmos, Thursday, April 20, 2017 in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13pm April 20 Baikonur time, and will carry Yurchikhin and Fischer into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The moon is seen as the Soyuz rocket is prepared to be rolled out to the launch pad on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz MS-04 spacecraft, scheduled to launch April 20 Baikonur time, will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Workers prepare to raise the Soyuz MS-04 spacecraft into the vertical position on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is seen shortly after arriving at the launch pad by train on Monday, April 17, 2017, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz rocket is prepared to be rolled out to the launch pad on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz MS-04 spacecraft, scheduled to launch April 20 Baikonur time, will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The moon is seen as Russian security officers inspect the tracks before the Soyuz rocket is rolled out to the launch pad on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz MS-04 spacecraft, scheduled to launch April 20 Baikonur time, will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch in a Soyuz rocket with fellow crew mate Flight Engineer Jack Fischer of NASA, Thursday, April 20, 2017 in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13pm April 20 Baikonur time, and will carry Yurchikhin and Fischer into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch in a Soyuz rocket with fellow crew mate Flight Engineer Jack Fischer of NASA, Thursday, April 20, 2017 in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13pm April 20 Baikonur time, and will carry Yurchikhin and Fischer into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Flight Engineer Jack Fischer of NASA performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch in a Soyuz rocket with fellow crew mate, Soyuz Commander Fyodor Yurchikhin of Roscosmos, Thursday, April 20, 2017 in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13pm April 20 Baikonur time, and will carry Yurchikhin and Fischer into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
Launch Pad 1 is seen as the Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
Elizabeth Fischer, wife of Expedition 51 Flight Engineer Jack Fischer of NASA is interviewed by media shortly after the Soyuz MS-04 spacecraft arrived at the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Fischer and Soyuz Commander Fyodor Yurchikhin of Roscosmos into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is seen after being rolled out by train and secured at the launch pad on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 prime crew member Soyuz Commander Fyodor Yurchikhin of Roscosmos, left, laughs with Expedition 51 backup crew member Sergey Ryazanskiy of Roscosmos during a press conference on Wednesday, April 19, 2017 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Yurchikhin and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani).
Expedition 51 backup crew member, Sergey Ryazanskiy of Roscosmos answers a question during a press conference on Wednesday, April 19, 2017 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 prime crew members Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA, into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Family and friends of Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos reacts as they see Yurchikhin enter the International Space Station during a live video feed of the Expedition 51 crew members a few hours after the Soyuz MS-04 spacecraft docked on Thursday, April 20, 2017 at Tsenki Conference Hall in Baikonur, Kazakhstan. Flight engineer Jack Fischer of NASA and Yurchikhin's arrival to the International Space Station comes the same day they launched from the Baikonur Cosmodrome in Kazakhstan. Photo Credit (NASA/Aubrey Gemignani)
Expedition 51 NASA Flight Engineer Jack Fischer's family is seen at a pre-launch press conference on Wednesday, April 19, 2017 at the Cosmonaut Hotel in Baikonur, Kazakhstan. From left to right are Fischer's daughter, Sariah, his wife, Elizabeth, and daughter Bethany. Launch of the Expedition 51 crew is scheduled for April 20 and will carry Fischer and Soyuz Commander Fyodor Yurchikhin of Roscosmos into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani).
Expedition 51 Flight Engineer Jack Fischer's daughter Sariah Fischer is interviewed by media at the conclusion of a pre-launch press conference on Wednesday, April 19, 2017 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Fischer and Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Flight Engineer Jack Fischer's wife, Elizabeth Fischer, left, and daughters Sariah (not pictured) and Bethany, right, reach up to the bus window to bid farewell to Fischer as he departs the Cosmonaut Hotel to suit-up for his Soyuz launch to the International Space Station on Thursday, April 20, 2017 in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13PM April 20 Baikonur time and will send Fischer and Soyuz Commander Fyodor Yurchikhin of Roscosmos on a four and a half month mission aboard the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos, left, receives the traditional blessing from a Russian Orthodox priest at the Cosmonaut Hotel prior to his launch on the Soyuz rocket to the International Space Station (ISS), Thursday, April 20, 2017, in Baikonur, Kazakhstan. He and fellow crew mate, Flight Engineer Jack Fischer of NASA, right, will spend the next four and a half months living and working aboard the ISS. Photo Credit: (NASA/Aubrey Gemignani)
The moon is seen behind the Soyuz MS-04 spacecraft at the Baikonur Cosmodrome launch pad on Wednesday, April 19, 2017 in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft arrives at the launch pad after being rolled there by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 crew members, Soyuz Commander Fyodor Yurchikhin of Roscosmos, left, and Flight Engineer Jack Fischer of NASA, right, wave to family and friends as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station on Thursday, April 20, 2017 in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13PM April 20 Baikonur time and will send Yurchikhin and Fischer on a four and a half month mission aboard the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos, left, and Flight Engineer Jack Fischer of NASA, right, receive the traditional blessing from a Russian Orthodox priest at the Cosmonaut Hotel prior to their launch on the Soyuz rocket to the International Space Station (ISS), Thursday, April 20, 2017, in Baikonur, Kazakhstan. Yurchikhin and Fischer will spend the next four and a half months living and working aboard the ISS. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 spacecraft arrives at the launch pad after being rolled there by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
A Russian security officer is seen as the Soyuz MS-04 spacecraft is rolled out to the launch pad by train on Monday, April 17, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station.Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Flight Engineer Jack Fischer of NASA, right, receives the traditional blessing from a Russian Orthodox priest at the Cosmonaut Hotel prior to his launch on the Soyuz rocket to the International Space Station (ISS), Thursday, April 20, 2017, in Baikonur, Kazakhstan. He and fellow crew mate, Soyuz Commander Fyodor Yurchikhin of Roscosmos, left, will spend the next four and a half months living and working aboard the ISS. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 prime crew members, Flight Engineer Jack Fischer of NASA, left, and Soyuz Commander Fyodor Yurchikhin of Roscosmos, second left, are seen with Expedition 51 back up crew members, Soyuz Commander Sergey Ryazanskiy of Roscosmos, second from right, and Flight Engineer Randy Bresnik of NASA, right, during a press conference held at the Cosmonaut Hotel in Baikonur, Kazakhstan on Wednesday, April 19, 2017. The mission is set to launch April 20 from the Baikonur Cosmodrome. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos, right, waves at family and friends from behind glass, while in quarantine, during the State Commission meeting to approve the Soyuz launch of Expedition 51 to the International Space Station, Wednesday, April 19, 2017, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Yurchikhin and Flight Engineer Jack Fischer of NASA, left, into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani).
Expedition 51 Flight Engineer Jack Fischer speaks from behind glass, while in quarantine, during the State Commission meeting to approve the Soyuz launch of Expedition 51 to the International Space Station, Wednesday, April 19, 2017, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Fischer and Soyuz Commander Fyodor Yurchikhin of Roscosmos into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 backup crew member Sergey Ryazanskiy of Roscosmos speaks during the State Commission meeting to approve the Soyuz launch of Expedition 51 to the International Space Station, Wednesday, April 19, 2017 at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission is set to launch April 20 from the Baikonur Cosmodrome. Photo Credit: (NASA/Aubrey Gemignani)
NASA Expedition 51 backup crew member Randy Bresnik speaks during the State Commission meeting to approve the Soyuz launch of Expedition 51 to the International Space Station, Wednesday, April 19, 2017 at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission is set to launch April 20 from the Baikonur Cosmodrome. Photo Credit: (NASA/Aubrey Gemignani)
Igor Komarov, Director of Roscosmos, makes remarks during the State Commission meeting to approve the Soyuz launch of Expedition 51 to the International Space Station, Wednesday, April 19, 2017 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Space Station expedition 50/51 crew member Thomas Pesquet hangs a commemorative plaque in the Payload Operation Integration Center at NASA's Marshall Space Flight Center.
Expedition 51 prime crew members, Flight Engineer Jack Fischer of NASA, left, and Soyuz Commander Fyodor Yurchikhin of Roscosmos, second left, are seen with Expedition 51 back up crew members, Soyuz Commander Sergey Ryazanskiy of Roscosmos, second from right, and Flight Engineer Randy Bresnik of NASA, right at the State Commission meeting to approve the Soyuz launch of Expedition 51 to the International Space Station in Baikonur, Kazakhstan on Wednesday, April 19, 2017. The mission is set to launch April 20 from the Baikonur Cosmodrome. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 prime crew members, Flight Engineer Jack Fischer of NASA, left, and Soyuz Commander Fyodor Yurchikhin of Roscosmos, second from left, pose for a photo with Expedition 51 back up crew members, Soyuz Commander Sergey Ryazanskiy of Roscosmos, second from right, and Flight Engineer Randy Bresnik of NASA, right, at the conclusion of the press conference held at the Cosmonaut Hotel in Baikonur, Kazakhstan on Wednesday, April 19, 2017. The mission is set to launch April 20 from the Baikonur Cosmodrome. Photo Credit: (NASA/Aubrey Gemignani)
A view of the projection screens from the Tsenki Conference Hall shows live video feed of the Expedition 51 crew members gathered together on the International Space Station a few hours after the Soyuz MS-04 spacecraft docked on Thursday, April 20, 2017 in Baikonur, Kazakhstan. Pictured are Expedition 51 crew members, Soyuz Commander Fyodor Yurchikhin of Roscosmos, bottom left, and Flight Engineer Jack Fischer of NASA, bottom right. Yurchikhin and Fischer's arrival to the International Space Station comes the same day they launched from the Baikonur Cosmodrome in Kazakhstan. Photo Credit (NASA/Aubrey Gemignani)
Expedition 51 prime crew members, Flight Engineer Jack Fischer of NASA, left, and Soyuz Commander Fyodor Yurchikhin of Roscosmos, second from left, pose for a photo with Expedition 51 back up crew members, Soyuz Commander Sergey Ryazanskiy of Roscosmos, second from right, and Flight Engineer Randy Bresnik of NASA, right, at the conclusion of the press conference held at the Cosmonaut Hotel in Baikonur, Kazakhstan on Wednesday, April 19, 2017. The mission is set to launch April 20 from the Baikonur Cosmodrome. Photo Credit: (NASA/Aubrey Gemignani)
Elizabeth Fischer, wife of Expedition 51 Flight Engineer Jack Fischer of NASA, reacts as she sees Fischer enter the International Space Station during a live video feed of the Expedition 51 crew members a few hours after the Soyuz MS-04 spacecraft docked on Thursday, April 20, 2017 at Tsenki Conference Hall in Baikonur, Kazakhstan. Soyuz Commander Fyodor Yurchikhin of Roscosmos and Fischer's arrival to the International Space Station comes the same day they launched from the Baikonur Cosmodrome in Kazakhstan. Photo Credit (NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
An Orthodox priest blesses the media at the Baikonur Cosmodrome launch pad on Wednesday, April 19, 2017 in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
An Orthodox priest hands out Easter eggs to the media at the Baikonur Cosmodrome launch pad after blessing the Soyuz rocket on Wednesday, April 19, 2017 in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
An Orthodox priest blesses the Soyuz rocket at the Baikonur Cosmodrome launch pad on Wednesday, April 19, 2017 in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
An Orthodox priest blesses the Soyuz rocket at the Baikonur Cosmodrome launch pad on Wednesday, April 19, 2017 in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
An Orthodox priest blesses the media at the Baikonur Cosmodrome launch pad on Wednesday, April 19, 2017 in Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 Baikonur time and will carry Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Victor Zelentsov)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
The Soyuz MS-04 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, April 20, 2017 Baikonur time carrying Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. (Photo Credit: NASA/Aubrey Gemignani)
Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos has his Russian Sokol suit pressure checked in preparation for launch aboard the Soyuz MS-04 spacecraft on Thursday, April 20, 2017, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13pm April 20 Baikonur time, and will carry Yurchikhin and fellow crewmate, Flight Engineer Jack Fischer of NASA into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Flight Engineer Jack Fischer of NASA is helped into his Russian Sokol suit as he and fellow crewmate, Soyuz Commander Fyodor Yurchikhin of Roscosmos prepare for their Soyuz launch to the International Space Station, Thursday, April 20, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13pm April 20 Baikonur time, and will carry Fischer and Yurchikhin into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (GCTC/Andrey Shelepin)
Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos, left, and Flight Engineer Jack Fischer of NASA, right, pose for a photo after being helped into their Russian Sokol suits in preparation for their Soyuz launch to the International Space Station, on Thursday, April 20, 2017 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for 1:13 p.m. April 20 Baikonur time, and will carry Yurchikhin and Fischer into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (GCTC/Andrey Shelepin)
Expedition 51 Flight Engineer Jack Fischer of NASA, left, answers a question with Soyuz Commander Fyodor Yurchikhin of Roscosmos, right, during a press conference on Wednesday, April 19, 2017 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for April 20 and will carry Yurchikhin and Fischer into orbit to begin their four and a half month mission on the International Space Station. Photo Credit: (NASA/Aubrey Gemignani)
Expedition 51 Soyuz Commander Fyodor Yurchikhin of Roscosmos speaks with his family after having his Russian Sokol suit pressure checked in preparation for launch onboard the Soyuz MS-04 spacecraft on Thursday, April 20, 2017 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Yurchikhin and Flight Engineer Jack Fischer of NASA is scheduled to launch at 1:13pm Baikonur time on April 20. Photo Credit: (NASA/Aubrey Gemignani)