Tim Frank describes the history of the Tomb Guard to NASA astronauts Mark Vande Hei, left, and Joe Acaba, center, Friday, June 15, 2018 at Arlington National Cemetery in Arlington, Va. Photo Credit: (NASA/Aubrey Gemignani)

ISS020-E-034811 (9 Aug. 2009) --- NASA astronaut Tim Kopra, Expedition 20 flight engineer, trims European Space Agency astronaut Frank De Winne’s hair in the Destiny laboratory of the International Space Station. Kopra used hair clippers fashioned with a vacuum device to garner freshly cut hair.

ISS020-E-026767 (31 July 2009) --- NASA astronaut Tim Kopra (left), European Space Agency astronaut Frank De Winne, cosmonaut Roman Romanenko and NASA astronaut Michael Barratt, all Expedition 20 flight engineers, share a meal at a galley in the Unity node of the International Space Station.

ISS020-E-026697 (31 July 2009) --- NASA astronaut Tim Kopra (foreground) and European Space Agency astronaut Frank De Winne, both Expedition 20 flight engineers, work with a carbon dioxide removal kit adapter in the Unity node of the International Space Station.

ISS020-E-029709 (10 Aug. 2009) --- Expedition 20 crew members pose for an in-flight portrait in the Harmony node of the International Space Station. Pictured from the left (front row) are Canadian Space Agency astronaut Robert Thirsk and NASA astronaut Michael Barratt, both flight engineers; along with cosmonaut Gennady Padalka, commander. From the left (back row) are NASA astronaut Tim Kopra, cosmonaut Roman Romanenko and European Space Agency astronaut Frank De Winne, all flight engineers.

ISS020-E-029752 (10 Aug. 2009) --- Expedition 20 crew members pose in "star-burst" formation for an in-flight portrait in the Harmony node of the International Space Station. Pictured clockwise from the bottom (center) are cosmonaut Gennady Padalka, commander; NASA astronaut Tim Kopra, Canadian Space Agency astronaut Robert Thirsk, cosmonaut Roman Romanenko, European Space Agency astronaut Frank De Winne and NASA astronaut Michael Barratt, all flight engineers.

S128-E-007963 (7 Sept. 2009) --- NASA astronauts Tim Kopra (left) and John “Danny” Olivas, both STS-128 mission specialists; along with European Space Agency astronaut Frank De Winne and Russian cosmonaut Roman Romanenko, both Expedition 20 flight engineers, pose for a photo in the Unity node of the International Space Station while Space Shuttle Discovery remains docked with the station.

KENNEDY SPACE CENTER, FLA. -- Astronauts Tim Kopra (left) and Frank DeWinne share impressions of the Node 2 module in the Space Station Processing Facility. They and other astronauts are familiarizing themselves with the various elements to be installed on the International Space Station on future spaceflights. With construction of the Space Station the primary focus of future shuttle missions, astronaut crews will be working with one or more of the elements and hardware already being processed in the SSPF. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Astronauts are in the Space Station Processing Facility to familiarize themselves with the various elements to be installed on the International Space Station on future spaceflights. Seen here in the Columbus module are (front) Michael Fincke, Frank DeWinne and Sandra Magnuson; (back) Salizhan Sharipov, Soichi Noguchi and Tim Kopra. With construction of the Space Station the primary focus of future shuttle missions, astronaut crews will be working with one or more of the elements and hardware already being processed in the SSPF. Photo credit: NASA/Kim Shiflett

ISS020-E-037179 (30 Aug. 2009) --- NASA astronaut Tim Kopra (left) and European Space Agency astronaut Frank De Winne, both Expedition 20 flight engineers, work in the Pressurized Mating Adapter 2 (PMA-2) of the International Space Station while Space Shuttle Discovery (STS-128) remains docked with the station.

ISS020-E-029759 (10 Aug. 2009) --- Expedition 20 crew members give a “thumbs-up” signal as they pose in "star-burst" formation for an in-flight portrait in the Harmony node of the International Space Station. Pictured clockwise from the bottom (center) are cosmonaut Gennady Padalka, commander; NASA astronaut Tim Kopra, Canadian Space Agency astronaut Robert Thirsk, cosmonaut Roman Romanenko, European Space Agency astronaut Frank De Winne and NASA astronaut Michael Barratt, all flight engineers.

KENNEDY SPACE CENTER, FLA. -- Walking through the Space Station Processing Facility are astronauts Frank DeWinne, Michael Fincke and Tim Kopra. They are familiarizing themselves with the various elements to be installed on the International Space Station on future spaceflights. With construction of the Space Station the primary focus of future shuttle missions, astronaut crews will be working with one or more of the elements and hardware already being processed in the SSPF. Photo credit: NASA/Kim Shiflett

ISS020-E-037050 (30 Aug. 2009) --- Expedition 20 crew members are pictured in the Harmony node of the International Space Station as Space Shuttle Discovery’s crew ingress through the station’s Pressurized Mating Adapter 2 (PMA-2). Pictured (from the left) are Canadian Space Agency astronaut Robert Thirsk, European Space Agency astronaut Frank De Winne and NASA astronaut Tim Kopra, all flight engineers; along with Russian cosmonaut Gennady Padalka (partially out of frame at right), commander. Astronaut Rick Sturckow, STS-128 commander, is visible in the background as he leads his crew onto the space station.

S127-E-008608 (25 July 2009) --- A record-setting 13 astronauts and cosmonauts assemble for a shuttle-station group photo on the orbital outpost. The STS-127 Endeavour crew includes astronauts Mark Polansky, Doug Hurley, Christopher Cassidy, Tom Marshburn and Dave Wolf along with Japanese Aerospace Exploration Agency astronaut Koichi Wakata and Canadian Space Agency astronaut Julie Payette. The station crew members are Russian Federal Space Agency cosmonauts Gennady Padalka and Roman Romanenko, Canadian Space Agency astronaut Robert Thirsk, European Space Agency astronaut Frank DeWinne and astronauts Mike Barratt and Tim Kopra.

KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, astronauts peer up into the stands holding the Node 2 module. Visible from left are Sandra Magnuson, Tim Kopra, Michael Fincke, Frank DeWinne and Soichi Noguchi. They and other astronauts are familiarizing themselves with the various elements to be installed on the International Space Station on future spaceflights. With construction of the Space Station the primary focus of future shuttle missions, astronaut crews will be working with one or more of the elements and hardware already being processed in the SSPF. Photo credit: NASA/Kim Shiflett

ISS020-E-038322 (5 Sept. 2009) --- The STS-128 and Expedition 20 crewmembers found a few moments on a day between two spacewalk days to pose for some portraits on the International Space Station. The red-clad crewmembers are with STS-128. They include, front row, from the left, astronauts Rick Sturckow, Jose Hernandez and Patrick Forrester; behind them in red, are astronauts Kevin Ford, John "Danny" Olivas, with European Space Agency astronaut Christer Fuglesang. At bottom left is Tim Kopra, who joined the station crew in July but now is scheduled to return to Earth in less than a week with the Discovery astronauts. Surrounding the Discovery crew, in clockwise fashion, are the members of Expedition 20 crew, astronaut Nicole Stott, Canadian astronaut Robert Thirsk, with cosmonaut Roman Romanenko, European Space Agency astronaut Frank De Winne, cosmonaut Gennady Padalka and astronaut Michael Barratt.

S127-E-008600 (25 July 2009) --- These 13 space fliers are spending more than a week together onboard the International Space Station, marking a population record on the orbital outpost. On front row, left to right, are Canadian Space Agency astronaut Julie Payette, astronaut Mark Polansky, Russian Federal Space Agency cosmonaut Gennady Padalka and astronaut Dave Wolf. On second row, are astronaut Doug Hurley, Canadian Space Agency astronaut Robert Thirsk, Japanese Aerospace Exploration Agency astronaut Koichi Wakata and astronaut Tom Marshburn. On the back row are Russian Federal Space Agency cosmonaut Roman Romanenko, astronauts Mike Barratt and Christopher Cassidy, along with European Space Agency astronaut Frank DeWinne and astronaut Tim Kopra.

S127-E-009741 (28 July 2009) --- After 11 days of cooperative work onboard the International Space Station and Space Shuttle Endeavour, the STS-127 and Expedition 20 crew members bid farewell to each other prior to the undocking of the two spacecraft. Pictured in the foreground are Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata (left), STS-127 mission specialist; cosmonaut Gennady Padalka, Expedition 20 commander; NASA astronaut Mark Polansky, STS-127 commander; and NASA astronaut Tim Kopra, Expedition 20 flight engineer. Pictured in the background are cosmonaut Roman Romanenko, NASA astronaut Michael Barratt and European Space Agency astronaut Frank De Winne, all Expedition 20 flight engineers. Undocking occurred at 12:26 p.m. (CDT) on July 28, 2009.

ISS020-E-038360 (5 Sept. 2009) --- These seven international astronauts and cosmonauts take a few minutes from a busy agenda to pose for a portrait on the International Space Station, where they?re spending more than a week with a second group of visitors in summer 2009, accomplishing joint activities with the STS-128 Discovery crew. On the front row, from the left, are Canadian Aerospace Agency astronaut Robert Thirsk, and NASA astronauts Tim Kopra and Mike Barratt, with Russia?s Federal Space Agency cosmonaut Gennady Padalka. Appearing above them, as though suspended by invisible wires, are, from the left, astronaut Nicole Stott with cosmonaut Roman Romanenko and European Space Agency astronaut Frank De Winne. Stott replaces Kopra, who will be returning to Earth in a few days aboard Discovery.

NASA astronauts Mark Vande Hei, left, Julie Vande Hei, center, and Joe Acaba pose for a photo at the amphitheater at Arlington National Cemetery, Friday, June 15, 2018 in Arlington, Va. Photo Credit: (NASA/Aubrey Gemignani)

S127-E-007464 (21 July 2009) --- Nine of a total aggregation of 13 astronauts and cosmonauts are pictured at meal time aboard the International Space Station. Seated at the table, clockwise from bottom left, are European Space Agency astronaut Frank De Winne, astronaut Christopher Cassidy, along with astronauts Mike Barratt and Tim Kopra and Canadian Space Agency astronaut Robert Thirsk and astronaut Mark Polansky. From left to right at top are Japanese Aerospace Exploration Agency astronaut Koichi Wakata and Russian Federal Space Agency cosmonauts Roman Romanenko and Gennady Padalka. Not pictured are astronauts Tom Marshburn, Dave Wolf and Doug Hurley, plus Canadian Space Agency astronaut Julie Payette. Barratt is holding a display version of an Apollo 11 lunar sample that had earlier been taken up by a shuttle mission (STS-119) to be onboard the orbital outpost at the time of the current observance of the first moon landing's 40th anniversary. Seven astronauts left Kennedy Space Center one week ago aboard the Space Shuttle Endeavour to join up with the six Expedition 20 crew members on the space station to continue work on it. The space fliers have completed two of five scheduled spacewalks up to this point.

S127-E-009733 (28 July 2009) --- The STS-127 and Expedition 20 crew members pose for a group portrait in the Harmony node of the International Space Station while the Space Shuttle Endeavour remains docked with the station. Pictured from the left (front row) are NASA astronauts Michael Barratt, Expedition 20 flight engineer; Mark Polansky, STS-127 commander; cosmonaut Gennady Padalka, Expedition 20 commander; and NASA astronaut Dave Wolf, STS-127 mission specialist. Pictured from the left (middle row) are Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata, STS-127 mission specialist; Canadian Space Agency astronauts Julie Payette, STS-127 mission specialist; and Robert Thirsk, Expedition 20 flight engineer; and NASA astronaut Tom Marshburn, STS-127 mission specialist. Pictured from the left (back row) are cosmonaut Roman Romanenko, Expedition 20 flight engineer; NASA astronauts Christopher Cassidy, STS-127 mission specialist; Doug Hurley, STS-127 pilot; Tim Kopra, Expedition 20 flight engineer; and European Space Agency astronaut Frank De Winne, Expedition 20 flight engineer.

S127-E-007461 (21 July 2009) --- Eight of a total aggregation of 13 astronauts and cosmonauts are pictured at meal time aboard the International Space Station. Pictured, clockwise from bottom right, are astronauts Christopher Cassidy and Mike Barratt, with Russian Federal Space Agency cosmonaut Roman Romanenko, an unidentified crew member, Japanese Aerospace Exploration Agency astronaut Koichi Wakata (floating above), Canadian Space Agency astronauts Robert Thirsk and Julie Payette, European Space Agency astronaut Frank De Winne, and astronaut Christopher Cassidy. Either out of frame or not clearly seen are astronauts Mark Polansky, Doug Hurley, Dave Wolf, Tim Kopra and Tom Marshburn, plus Russian Federal Space Agency cosmonaut Gennady Padalka. Seven astronauts left Kennedy Space Center one week ago aboard the Space Shuttle Endeavour to join up with the six Expedition 20 crew members on the orbital outpost to continue work on it. The space fliers have completed two of five scheduled spacewalks up to this point.