jsc2019e022584_alt (Sept. 12, 2019) --- Expedition 62 crew portrait with NASA astronaut Andrew Morgan, Roscosmos cosmonaut Oleg Skripochka and NASA astronaut Jessica Meir.

jsc2020e041216 (Sept. 17, 2020) --- NASA astronaut Kayla Barron participates in T-38 preflight training at Ellington Field in Houston, Texas.

NASA exhibits on display at Super Bowl - NFL Live Event at Discovery Green. Photo Date: January 26, 2017. Location: Discovery Green - Houston, TX. Photographer: Robert Markowitz

jsc2017e049159 (April 24, 2017) --- Flight Director Brian Smith, Capcom Astronaut Jessica Meir along with Astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Robert Markowitz)

jsc2018e003257 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas during sunrise on Jan. 31, 2018. Credit: NASA/Robert Markowitz

jsc2017e067116 (June 6, 2017) --- NASA portrait of 2017 Astronaut Candidate Warren Hoburg in front of a T-38 trainer aircraft at Ellington Field near NASA’s Johnson Space Center in Houston, Texas.

Spacesuit engineers demonstrate how four crew members would be arranged for launch inside the Orion spacecraft, using a mockup of the vehicle at Johnson Space Center in Houston on Oct. 24, 2014. Part of Batch image transfer from Flickr.

jsc2018e095906 (November 7, 2018) --- 2017 NASA astronaut candidate Kayla Barron is helped into a spacesuit prior to underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

Official portrait of JAXA astronaut Soichi Noguchi in EMU suit. Photo taken in bldg 8, rm. 183 - Photo studio.

Spacesuit engineers demonstrate how four crew members would be arranged for launch inside the Orion spacecraft, using a mockup of the vehicle at Johnson Space Center in Houston on Oct. 24, 2014. Part of Batch image transfer from Flickr.

Expedition 43 flight control team with Flight Director Gary Horlacher during the release of SpaceX Dragon cargo vehicle. Photo Date: May 21, 2015. Location: Building 30 - FCR1. Photographer: Robert Markowitz

jsc2018e003255 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during the early morning hours of Jan. 31, 2018. Credit: NASA/Robert Markowitz

jsc2017e067113 (June 6, 2017) --- NASA portrait of 2017 Astronaut Candidate Raja Chari in front of a T-38 trainer aircraft at Ellington Field near NASA’s Johnson Space Center in Houston, Texas.

jsc2017e049157 (April 24, 2017) --- Flight Director Brian Smith, Capcom Astronaut Jessica Meir along with Astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Robert Markowitz)

Official NASA Portrait of Jon B. Olansen. Photo Date: September 12, 2018. Location: Building 8, Room 183 - Photo Studio. Photographer: Robert Markowitz

jsc2017e126052 (Oct. 17, 2017) --- NASA astronaut Jeanette Epps trains in a U.S. spacesuit at NASA's Johnson Space Center.

jsc2018e067958 (Aug. 2, 2018) --- NASA astronauts Victor Glover (left) and Mike Hopkins pose for a portrait in front of the SpaceX Dragon Commercial Crew spacecraft mock up at NASA's Johnson Space Center in Houston, Texas.

jsc2018e067397_alt (Aug. 1, 2018) --- NASA Astronaut Doug Hurley has been assigned to the first flight of SpaceX’s Crew Dragon.

jsc2018e095941 (November 7, 2018) --- 2017 NASA astronaut candidate Jonny Kim is lowered into the training pool for spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

jsc2018e003253 (Jan. 31, 2018) --- Downtown Houston, Texas was photographed from the Johnson Space Center during an early sunrise on Jan. 31, 2018. Credit: NASA/Robert Markowitz

jsc2018e003252 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during the early morning hours of Jan. 31, 2018. Credit: NASA/Robert Markowitz

jsc2017e049160 (April 24, 2017) --- Flight Director Brian Smith, Capcom Astronaut Jessica Meir along with Astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Robert Markowitz)

iss057-s-002b (Nov. 8, 2017) --- Official crew portrait of Expedition 57 crew members (from left) Serena Auñón-Chancellor of NASA, Alexander Gerst of ESA (European Space Agency) and Sergey Prokopyev of Roscosmos.

jsc2020e042654_alt (Sept. 29, 2020) --- Portrait of JAXA (Japan Aerospace Exploration Agency) astronaut and SpaceX Crew-2 Mission Specialist Akihiko Hoshide.

jsc2019e040189 (July 18, 2019) --- Apollo alumni and NASA employees came together on July 18th at Johnson Space Center's Gilruth Center in Houston for an evening of meeting, mingling, and memorabilia celebrating the 50th anniversary of Apollo 11 and the entire Apollo program.

jsc2018e067953 (Aug. 2, 2018) --- NASA astronauts Josh Cassada (left) and Suni Williams pose for a portrait in front of the Boeing CST-100 Starliner Commercial Crew vehicle mock up at NASA's Johnson Space Center in Houston, Texas.

iss056-s-002 (March 8, 2018) --- The official portrait of the Expedition 56 crew. In the front row from left are astronauts Drew Feustel of NASA and Alexander Gerst of the European Space Agency. In the rear from left are crew members Oleg Artemyev of Roscosmos, Ricky Arnold of NASA, Sergei Prokopev of Roscosmos and Serena Auñón-Chancellor of NASA.

jsc2018e003249 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during the early morning hours of Jan. 31, 2018. Credit: NASA/Robert Markowitz

jsc2018e076665 (Aug. 23, 2018) --- Vice President Mike Pence and NASA Administrator Jim Bridenstine visit the Sonny Carter Training Center (Neutral Buoyancy Lab) at NASA’s Johnson Space Center on Aug. 23, 2018. Pence and Bridenstine spoke with astronaut Suni Williams, and astronaut candidates Jonny Kim, Warren "Woody" Hoburg and Loral O’Hara poolside. While in the Test Control Room, they joined Flight Operations Director Brian Kelly and talked with astronauts Victor Glover and Nicole Mann as they practiced spacewalk tasks underwater.

jsc2018e088236 (July 3, 2017) --- Portrait of NASA astronaut Nicole Mann seated at the CAPCOM console in Houston's Mission Control Center during the release of the SpaceX Dragon cargo vehicle from the International Space Station.

jsc2020e041210 (Sept. 17, 2020) --- NASA astronaut Kayla Barron participates in T-38 preflight training at Ellington Field in Houston, Texas.

jsc2019e040244 (July 18, 2019) --- Apollo alumni and NASA employees came together on July 18th at Johnson Space Center's Gilruth Center in Houston for an evening of meeting, mingling, and memorabilia celebrating the 50th anniversary of Apollo 11 and the entire Apollo program.

jsc2017e067122 (June 6, 2017) --- NASA portrait of 2017 Astronaut Candidate Jasmin Moghbeli in front of a T-38 trainer aircraft at Ellington Field near NASA’s Johnson Space Center in Houston, Texas.

Expedition 44/45 crew members Oleg Kononenko, Kimiya Yui and Kjell Lindgren during emergency scenarios training in the ISS mockups. Photo Date: March 11, 2015. Location: Building 9NW - ISS Mockups. Photographer: Robert Markowitz

Documentation taken of SpaceX Crew 1 astronauts Mike Hopkins and Victor Glover during ISS EVA MAINT 8 training at NBL pool topside.

jsc2018e003251 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during the early morning hours of Jan. 31, 2018. Credit: NASA/Robert Markowitz

jsc2017e049162 (April 24, 2017) --- Flight Director Brian Smith, Capcom Astronaut Jessica Meir along with Astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Robert Markowitz)

jsc2017e049156 (April 24, 2017) --- Flight Director Brian Smith, Capcom Astronaut Jessica Meir along with Astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Robert Markowitz)

jsc2018e095924 (November 7, 2018) --- 2017 NASA astronaut candidate Jonny Kim prepares for underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

jsc2018e067956 (Aug. 2, 2018) --- NASA astronauts Bob Behnken (left) and Doug Hurley pose for a portrait in front of the SpaceX Dragon Commercial Crew vehicle mock up at NASA's Johnson Space Center in Houston, Texas.

jsc2018e095900 (November 7, 2018) --- 2017 NASA astronaut candidate Kayla Barron is helped into a spacesuit prior to underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

jsc2020e042824_alt (Sept. 29, 2020) --- Portrait of European Space Agency (ESA) astronaut and SpaceX Crew-2 Mission Specialist Thomas Pesquet.

jsc2018e003246 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during the early morning hours of Jan. 31, 2018. Credit: NASA/Robert Markowitz

jsc2018e067361_alt (Aug. 1, 2018) --- NASA Astronaut Bob Behnken has been assigned to the first flight of SpaceX’s Crew Dragon.

jsc2018e003201 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during sunrise on Jan. 31, 2018. Credit: NASA/Robert Markowitz

jsc2018e095935 (November 7, 2018) --- 2017 NASA astronaut candidate Kayla Barron prepares for underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

jsc2017e049161 (April 24, 2017) --- Flight Director Brian Smith, Capcom Astronaut Jessica Meir along with Astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Robert Markowitz)

jsc2017e049155 (April 24, 2017) --- Flight Director Brian Smith, Capcom Astronaut Jessica Meir along with Astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Robert Markowitz)

jsc2019e040271 (July 18, 2019) --- Apollo alumni and NASA employees came together on July 18th at Johnson Space Center's Gilruth Center in Houston for an evening of meeting, mingling, and memorabilia celebrating the 50th anniversary of Apollo 11 and the entire Apollo program.

iss057-s-002 (November 8, 2017) --- The official portrait of the five-member Expedition 57 crew. In the front row from left are Serena Auñón-Chancellor of NASA, Commander Alexander Gerst from the European Space Agency and Sergei Prokopev of Roscosmos. In the back row from left are Flight Engineers Aleksey Ovchinin of Roscosmos and Nick Hague from NASA.

jsc2018e095911 (November 7, 2018) --- 2017 NASA astronaut candidate Jonny Kim is helped into a spacesuit prior to underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

jsc2017e067124 (June 6, 2017) --- NASA portrait of 2017 Astronaut Candidate Zena Cardman in front of a T-38 trainer aircraft at Ellington Field near NASA’s Johnson Space Center in Houston, Texas.

jsc2019e026848_alt (June 18, 2019) --- Official portrait of NASA astronaut Nicole Mann.

Test Engineer Chris McWilliams looks in on test equipment in the Boom Box High Pressure Test Enclosure in the Building 353H at Johnson Space Center’s Energy Systems Test Area. Photo Date: January 16, 2020. Photo Credit: (NASA/Robert Markowitz)

jsc2020e042697_alt (Sept. 29, 2020) --- Portrait of NASA astronaut and SpaceX Crew-2 Commander Shane Kimbrough.

jsc2017e067114 (June 6, 2017) --- NASA portrait of 2017 Astronaut Candidate Kayla Barron in front of a T-38 trainer aircraft at Ellington Field near NASA’s Johnson Space Center in Houston, Texas.

Expedition 45/46 Commander, Astronaut Scott Kelly along with his brother, former Astronaut Mark Kelly speak to news media outlets about Scott Kelly's 1-year mission aboard the International Space Station. Photo Date: January 19, 2015. Location: Building 2. Photographer: Robert Markowitz

jsc2018e095898 (November 7, 2018) --- 2017 NASA astronaut candidate Kayla Barron is helped into a spacesuit prior to underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

jsc2017e067117 (June 6, 2017) --- NASA portrait of 2017 Astronaut Candidate Jonny Kim in front of a T-38 trainer aircraft at Ellington Field near NASA’s Johnson Space Center in Houston, Texas.

NASA exhibits on display at Super Bowl - NFL Live Event at Discovery Green. Photo Date: January 26, 2017. Location: Discovery Green - Houston, TX. Photographer: Robert Markowitz

jsc2018e067954 (Aug. 2, 2018) --- NASA astronauts (from left) Bob Behnken, Doug Hurley, Mike Hopkins and Victor Glover pose for a portrait in front of the SpaceX Dragon Commercial Crew vehicle mock up at NASA's Johnson Space Center in Houston, Texas.

Spacesuit engineers demonstrate how four crew members would be arranged for launch inside the Orion spacecraft, using a mockup of the vehicle at Johnson Space Center in Houston on Oct. 24, 2014. Part of Batch image transfer from Flickr.

iss061-s-002 (May 29, 2019) --- The official Expedition 61 crew portrait with (from left) NASA astronaut Andrew Morgan, Roscosmos cosmonaut Alexander Skvortsov, astronaut Luca Parmitano of ESA (European Space Agency), Roscosmos cosmonaut Oleg Skripochka, and NASA astronauts Jessica Meir and Christina Koch.

jsc2017e049163 (April 24, 2017) --- Flight Director Brian Smith, Capcom Astronaut Jessica Meir along with Astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Robert Markowitz)

jsc2019e025859_alt (3/8/2019) --- Seeker and its communication link, called Kenobi CubeSat Vehicles. Seeker is an automated extravehicular free-flying inspector CubeSat. The primary objective of the Seeker mission is to demonstrate a path toward an inspection capability for future crewed space missions. The Seeker investigation flies the robot on basic maneuvers to take high-resolution images of the Cygnus resupply vehicle after it leaves the International Space Station (ISS).

jsc2018e095908 (Nov. 7, 2018) --- NASA astronaut candidate Kayla Barron participates in spacewalk training at the Neutral Buoyancy Laboratory at NASA's Johnson Space Center in Houston, Texas.

jsc2017e067121 (June 6, 2017) --- NASA portrait of 2017 Astronaut Candidate Jessica Watkins in front of a T-38 trainer aircraft at Ellington Field near NASA’s Johnson Space Center in Houston, Texas.

iss053-s-002 (June 20, 2017) --- The six-member Expedition 53 crew poses for an official crew portrait at the Johnson Space Center in Houston, Texas. Seated in the front (from left) are Flight Engineer Alexander Misurkin of Roscosmos and Commander Randy Bresnik of NASA. Standing in the back (from left) are NASA astronauts Joe Acaba and Mark Vande Hei, Sergey Ryazanskiy of Roscosmos and Paolo Nespoli of the European Space Agency.

Group photo representating past and present Multi-Media Services (MMS) photographer and videographers that have supported Zero-G Reduced Gravity Office operations throughout the year prior to the programs final flight on August 29, 2014. Photo Date: August 18, 2014. Location: Ellington Field - Hangar 990. Photographer: Robert Markowitz

jsc2018e067950 (Aug. 2, 2018) --- NASA astronauts (from left) Eric Boe and Nicole Mann pose with Boeing astronaut Chris Ferguson for a portrait in front of the Boeing CST-100 Starliner Commercial Crew vehicle mock up at NASA's Johnson Space Center in Houston, Texas.

jsc2018e095931 (November 7, 2018) --- 2017 NASA astronaut candidate Jonny Kim prepares for underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

jsc2019e040195 (July 18, 2019) --- Apollo alumni and NASA employees came together on July 18th at Johnson Space Center's Gilruth Center in Houston for an evening of meeting, mingling, and memorabilia celebrating the 50th anniversary of Apollo 11 and the entire Apollo program.

iss054-s-002 (May 8, 2017) --- The six-member Expedition 54 crew poses for an official crew portrait at the Johnson Space Center in Houston, Texas. From left are Flight Engineers Joe Acaba and Mark Vande Hei of NASA, Commander Alexander Misurkin of Roscosmos and Flight Engineers Anton Shkaplerov of Roscosmos, Scott Tingle of NASA and Norishige Kanai of the Japan Aerospace Exploration Agency.

iss059-s-002 (Dec. 13, 2018) --- The official Expedition 59 crew portrait with (from left) astronauts David Saint-Jacques of the Canadian Space Agency and Anne McClain of NASA; cosmonauts Oleg Konenenko and Oleg Shkripochka of Roscosmos; and NASA astronauts Nick Hague and Christina Koch. Credit: NASA/Robert Markowitz

jsc2018e009198 (February 21, 2018) --- (From left) 2017 NASA astronaut candidates Bob Hines, Matthew Dominick, Jasmin Moghbeli, and Raja Chari take hold to their surroundings during their reduced gravity flight aboard Canadian Space Agency’s Dassault Falcon 20 Jet. Photo Credit: (NASA/Robert Markowitz)

jsc2018e009222 (February 21, 2018) --- (From left) 2017 NASA astronaut candidates Warren Hoburg, Kayla Barron, Frank Rubio, and Zena Cardman take hold to their surroundings during their reduced gravity flight aboard Canadian Space Agency’s Dassault Falcon 20 Jet. Photo Credit: (NASA/Robert Markowitz)

NASA exhibits on display at Super Bowl - NFL Live Event at Discovery Green. Photo Date: January 26, 2017. Location: Discovery Green - Houston, TX. Photographer: Robert Markowitz

Spacesuit engineers demonstrate how four crew members would be arranged for launch inside the Orion spacecraft, using a mockup of the vehicle at Johnson Space Center in Houston on Oct. 24, 2014. Part of Batch image transfer from Flickr.

jsc2018e076666 (Aug. 23, 2018) --- Vice President Mike Pence and NASA Administrator Jim Bridenstine visit the Sonny Carter Training Center (Neutral Buoyancy Lab) at NASA’s Johnson Space Center on Aug. 23, 2018. Pence and Bridenstine spoke with astronaut Suni Williams, and astronaut candidates Jonny Kim, Warren "Woody" Hoburg and Loral O’Hara poolside. While in the Test Control Room, they joined Flight Operations Director Brian Kelly and talked with astronauts Victor Glover and Nicole Mann as they practiced spacewalk tasks underwater.

jsc2019e040257 (July 18, 2019) --- Apollo alumni and NASA employees came together on July 18th at Johnson Space Center's Gilruth Center in Houston for an evening of meeting, mingling, and memorabilia celebrating the 50th anniversary of Apollo 11 and the entire Apollo program.

Expedition 45/46 Commander, Astronaut Scott Kelly along with his brother, former Astronaut Mark Kelly speak to news media outlets about Scott Kelly's 1-year mission aboard the International Space Station. Photo Date: January 19, 2015. Location: Building 2. Photographer: Robert Markowitz

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

jsc2018e067716_alt (Aug. 1, 2018) --- NASA Astronaut Suni Williams has been assigned to the second flight of Boeing’s CST-100 Starliner.

jsc2019e001293_alt (Feb. 13, 2019) --- NASA Astronaut E. Michael “Mike” Fincke has been assigned to the first flight of Boeing’s CST-100 Starliner. Fincke takes the place of astronaut Eric Boe, originally assigned to the mission in August 2018.

jsc2018e095891 (Nov. 7, 2018) --- NASA astronaut candidate Kayla Barron participates in spacewalk training at the Neutral Buoyancy Laboratory at NASA's Johnson Space Center in Houston, Texas.

jsc2018e067775_alt (Aug. 1, 2018) --- NASA Astronaut Victor Glover has been assigned to the second flight of SpaceX’s Crew Dragon.

jsc2018e003247 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during the early morning hours of Jan. 31, 2018. Credit: NASA/Robert Markowitz

jsc2017e067120 (June 6, 2017) --- NASA portrait of 2017 Astronaut Candidate Loral O'Hara in front of a T-38 trainer aircraft at Ellington Field near NASA’s Johnson Space Center in Houston, Texas.

jsc2018e009094 (February 21, 2018) --- 2017 NASA astronaut candidates Warren Hoburg, Zena Cardman, Frank Rubio, and Kayla Barron latch on to each other during a reduced gravity flight aboard Canadian Space Agency’s Dassault Falcon 20 Jet. Photo Credit: (NASA/Robert Markowitz)

jsc2017e067119 (June 6, 2017) --- NASA portrait of 2017 Astronaut Candidate Frank Rubio in front of a T-38 trainer aircraft at Ellington Field near NASA’s Johnson Space Center in Houston, Texas.

jsc2018e003250 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during the early morning hours of Jan. 31, 2018. Credit: NASA/Robert Markowitz

iss055-s-002 (Oct. 6, 2017) --- The six-member Expedition 55 crew poses for an official crew portrait at the Johnson Space Center in Houston, Texas. In the front row (from left) are Scott Tingle of NASA, Commander Anton Shkaplerov of Roscosmos and Norishige Kanai of the Japan Aerospace Exploration Agency. In the back row (from left) are NASA astronauts Ricky Arnold and Andrew Feustel and Roscosmos cosmonaut Oleg Artemyev.

jsc2017e049158 (April 24, 2017) --- Flight Director Brian Smith, Capcom Astronaut Jessica Meir along with Astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Robert Markowitz)

jsc2018e076664 (Aug. 23, 2018) --- Vice President Mike Pence and NASA Administrator Jim Bridenstine visit the Sonny Carter Training Center (Neutral Buoyancy Lab) at NASA’s Johnson Space Center on Aug. 23, 2018. Pence and Bridenstine spoke with astronaut Suni Williams, and astronaut candidates Jonny Kim, Warren "Woody" Hoburg and Loral O’Hara poolside. While in the Test Control Room, they joined Flight Operations Director Brian Kelly and talked with astronauts Victor Glover and Nicole Mann as they practiced spacewalk tasks underwater.

jsc2018e095914 (November 7, 2018) --- 2017 NASA astronaut candidate Kayla Barron is helped into a spacesuit prior to underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

Spacesuit engineers demonstrate how four crew members would be arranged for launch inside the Orion spacecraft, using a mockup of the vehicle at Johnson Space Center in Houston on Oct. 24, 2014. Part of Batch image transfer from Flickr.

jsc2018e095901 (Nov. 7, 2018) --- NASA astronaut candidate Kayla Barron participates in spacewalk training at the Neutral Buoyancy Laboratory at NASA's Johnson Space Center in Houston, Texas.

jsc2018e095903 (November 7, 2018) --- 2017 NASA astronaut candidate Jonny Kim wears a spacesuit prior to underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Photo Credit: (NASA/Robert Markowitz)

Expedition 45/46 Commander, Astronaut Scott Kelly along with his brother, former Astronaut Mark Kelly speak to news media outlets about Scott Kelly's 1-year mission aboard the International Space Station. Photo Date: January 19, 2015. Location: Building 2. Photographer: Robert Markowitz

jsc2018e003243 (Jan. 31, 2018) --- The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during the early morning hours of Jan. 31, 2018. Credit: NASA/Robert Markowitz