Expedition 43 NASA Astronaut Scott Kelly describes his One-Year mission patch to members of the press during media day, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonaut Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), left, shows his One-Year and Expedition 43 mission patches to members of the press during media day, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kornienko, NASA Astronaut Scott Kelly, and Russian Cosmonaut Gennady Padalka of Roscosmos are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Flags depicting the Soyuz TMA-16M spacecraft, the One-Year Mission, and the Expedition 43 Mission are seen on desks in two different rooms separated by glass where Expedition 43 prime and backup crews will meet with space officials on their final check of the Soyuz capsule, Monday, March 23, 2015 at the Baikonur Cosmodrome in Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

This scene from NASA Kennedy Space Center in April 2003 shows work during final processing of the spacecraft then known as NASA Mars Exploration Rover B and later named Opportunity.

From left to right, artist concepts of the Spitzer, Planck and Kepler space telescopes. NASA extended Spitzer and Kepler for two additional years; and the U.S. portion of Planck, a European Space Agency mission, for one year.

Retired NASA Astronaut Mark Kelly, left, fist pumps his identical twin brother, NASA Astronaut Scott Kelly through glass as Scott Kelly and fellow crew mates, Russian cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) participate in a press conference while in quarantine Thursday, March 26, 2015, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Mark Kelly, who flew four space shuttle missions and commanded the final flight of space shuttle Endeavour, will participate in biomedical studies on the ground while his twin is on board the orbiting laboratory. Scott Kelly, Kornienko, and Padalka launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly's girlfriend, Amiko Kauderer, and Kelly's twin brother, retired NASA Astronaut Mark Kelly, meet with Gagarin Cosmonaut Training Center (GCTC) Chief Epidemiologist Sergei Savin to be medically cleared to visit with Scott Thursday, March 26, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Mark Kelly, who flew four space shuttle missions and commanded the final flight of space shuttle Endeavour, will participate in biomedical studies on the ground while his twin is on board the orbiting laboratory. Scott Kelly, Russian cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

Retired NASA Astronaut Mark Kelly photographs his identical twin brother, NASA Astronaut Scott Kelly, as Scott Kelly and fellow crew mates, Russian cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) participate in a press conference, Thursday, March 26, 2015, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Mark Kelly, who flew four space shuttle missions and commanded the final flight of space shuttle Endeavour, will participate in biomedical studies on the ground while his twin is on board the orbiting laboratory. Scott Kelly, Kornienko, and Padalka launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

On sol 1120 February 26, 2007, the navigation camera aboard NASA Mars Exploration Rover Spirit captured one of the best dust devils it seen in its three-plus year mission.

This image is one of the first to be taken during Spitzer warm mission -- a new phase that began after the telescope, which operated for more than five-and-a-half years, ran out of liquid coolant.

This is one of the first images captured by the revived NEOWISE mission, after more than two years of hibernation. It shows a patch of sky in the constellation Canes Venatici, or the Hunting Dogs.

DATE: 3-27-15 LOCATION: Building 30 - ISS FCR-1 SUBJECT: Flight controllers during the launch of Scott Kelly and Cosmonaut Mikhail Kornienko for their historic one-year mission aboard the ISS. PHOTOGRAPHER: Lauren Harnett

Expedition 43 NASA Astronaut Scott Kelly, watches carefully as Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) work on Soyuz training, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, left, and Russian Cosmonaut Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) pose for a photo near a model of the Soyuz rocket during media day, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Kornienko, and Russian Cosmonaut Gennady Padalka of Roscosmos are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Media wait to be escorted to the next event during the Expedition 43 prime and backup crew media day on Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 43 NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly answers questions from the press during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Expedition 43 NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Media document Expedition 43 NASA Astronaut Scott Kelly as he plays billiards during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonauts Gennady Padalka, left, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) take part the tilt table training during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Padalka, Kornienko, and Expedition 43 NASA Astronaut Scott Kelly are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Media document Expedition 43 Russian Cosmonaut Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), left, and NASA Astronaut Scott Kelly, right, as they play billiards during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of Roscosmos are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Russian Cosmonaut Gennady Padalka of the Russian Federal Space Agency (Roscosmos) plays badminton during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Padalka, fellow Russian Cosmonaut Mikhail Kornienko of Roscosmos, and NASA Astronaut Scott Kelly are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly takes part in the spin chair training during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonauts Gennady Padalka, left, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) take part the tilt table training during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Padalka, Kornienko, and Expedition 43 NASA Astronaut Scott Kelly are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, left in mirror, and Russian Cosmonaut Mikhail Kornienko, of the Russian Federal Space Agency (Roscosmos) are seen exercising during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Kornienko, Kelly and Russian Cosmonaut Gennady Padalka of Roscosmos are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingall

Expedition 43 NASA Astronaut Scott Kelly takes part in the spin chair training during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Gagarin Cosmonaut Training Center (GCTC) Flight Surgeon Alexey Grishin, left, and Russian Cosmonaut Gennady Padalka of the Russian Federal Space Agency (Roscosmos) play a game of chess during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Padalka, fellow Russian Cosmonaut Mikhail Kornienko of Roscosmos, and NASA Astronaut Scott Kelly are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly waters a tree planted in his honor during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Gagarin Cosmonaut Training Center (GCTC) Chief Epidemiologist Sergei Savin stands in the Cosmonaut Hotel lobby and instructs the media on how their access to the Expedition 43 prime and backup crews will be organized during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Expedition 43 NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

During its one-year mission, NASA Wide-field Infrared Survey Explorer, mapped the entire sky in infrared light. Among the multitudes of astronomical bodies that have been discovered by the NEOWISE portion of the WISE mission are 20 comets.

To celebrate the one-year anniversary of the launch of NASA Wide-Field Infrared Explorer, the mission team put together this image showing just a sample of the millions of galaxies that have been imaged by WISE during its survey of the entire sky.

NASA's Gulfstream III was one of several research aircraft that NASA's Oceans Melting Greenland mission used during its six-year field campaign to record the temperature, salinity, and depth of the ocean around the entire island. OMG used airports in Greenland, Iceland, and Norway as bases for research flights. This image was taken at Thule Air Base, Greenland, on Sept. 18, 2016. https://photojournal.jpl.nasa.gov/catalog/PIA24984

KENNEDY SPACE CENTER, FLA. - Among the visitors placing flowers in the wire mesh fence surrounding the Space Memorial Mirror is one of the Indian dancers who performed a healing ceremony during a memorial service for the crew of Columbia. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was invited to the memorial service, which included comments by Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott. Scott is a former astronaut who flew on Columbia in 1997.

Expedition 43 Russian Cosmonauts Mikhail Kornienko, left, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos), center, and NASA Astronaut Scott Kelly answer questions from the press while standing on the Avenue of the Cosmonauts where two long rows of trees are all marked with the name and year of the crew member who planted them starting from Yuri Gagarin's tree, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonauts Mikhail Kornienko, left, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos), center, and NASA Astronaut Scott Kelly answer questions from the press while standing on the Avenue of the Cosmonauts where two long rows of trees are all marked with the name and year of the crew member who planted them starting from Yuri Gagarin's tree, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Media document Expedition 43 NASA Astronaut Scott Kelly, seated left, Russian Cosmonauts Gennady Padalka, center, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) as they work on Soyuz training, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

The Russian Sokol suits for Expedition 43 NASA Astronaut Scott Kelly, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), are seen moments before they were donned by the trio for their launch onboard the Soyuz TMA-16M spacecraft to the International Space Station, Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 43 backup crew members Sergei Volkov, left, and Alexey Ovchinin and of the Russian Federal Space Agency (Roscosmos), center, and NASA Astronaut Jeff Williams attend a training briefing, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 43 prime crew members: NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, left, Russian Cosmonauts Gennady Padalka, center, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) pose for a group photo near a model of the Soyuz rocket during media day, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, left, Russian Cosmonauts Gennady Padalka, center, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) take in the view from a overlook during media day, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 backup crew member NASA Astronaut Jeff Williams, reflected in mirror, Russian Cosmonauts Mikhail Kornienko, on elliptical, Gennady Padalka of the Russian Federal Space Agency (Roscosmos), and NASA Astronaut Scott Kelly, right, are seen exercising during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Padalka, Kornienko, and Kelly are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, seated left, Russian Cosmonauts Gennady Padalka, center, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), work on Soyuz training, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonauts Gennady Padalka, background, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) take part the tilt table training during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Padalka, Kornienko, and Expedition 43 NASA Astronaut Scott Kelly are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, seated left, Russian Cosmonauts Gennady Padalka, center, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), work on Soyuz training, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonauts Mikhail Kornienko, left, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos), center, and NASA Astronaut Scott Kelly attend a briefing, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonauts Mikhail Kornienko, seated left, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos), center, and NASA Astronaut Scott Kelly work on Soyuz training, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonauts Mikhail Kornienko, left, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos), center, and NASA Astronaut Scott Kelly attend a briefing, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 backup crew members Sergei Volkov, left, and Alexey Ovchinin and of the Russian Federal Space Agency (Roscosmos), center, and NASA Astronaut Jeff Williams attend a training briefing, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 43 prime crew members: NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Media document Expedition 43 NASA Astronaut Scott Kelly, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) as they work on Soyuz training, Saturday, March 21, 2015 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Support personnel review and sign workflow documents at the base of the Soyuz TMA-16M spacecraft during the final check of the spacecraft, Monday, March 23, 2015 at the Baikonur Cosmodrome in Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonaut Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), left, NASA Astronaut Scott Kelly, center, and Russian Cosmonaut Gennady Padalka are seen during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Kelly, Padalka, and Kornienko are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

KENNEDY SPACE CENTER, FLA. - Following the memorial service for the crew of Columbia at the Space Memorial Mirror, a visitor leaves a rose bouquet behind. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was invited to the memorial service, held in the KSC Visitor Complex, which included comments by Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott. Scott is a former astronaut who flew on Columbia in 1997.

KENNEDY SPACE CENTER, FLA. - Center Director Jim Kennedy speaks to attendees at a memorial service honoring the crew of Columbia. He stands in front of the Space Memorial Mirror at the KSC Visitor Complex. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. Attended by many friends, co-workers and families, the memorial service was also open to the public.

KENNEDY SPACE CENTER, FLA. - Roses and a floral wreath adorn the Space Memorial Mirror following a memorial service for the crew of Columbia. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was invited to the memorial service, which included comments by Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott. Scott is a former astronaut who flew on Columbia in 1997.

KENNEDY SPACE CENTER, FLA. - Winston Scott, executive director of Florida Space Authority, speaks to attendees at a memorial service honoring the crew of Columbia. He stands in front of the Space Memorial Mirror at the KSC Visitor Complex. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. Scott is a former astronaut who flew on Columbia in 1997. Attended by many friends, co-workers and families, the memorial service was also open to the public.

KENNEDY SPACE CENTER, FLA. - Following the memorial service for the crew of Columbia at the Space Memorial Mirror, visitors place roses in the wire mesh fence surrounding the mirror. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was invited to the memorial service, held in the KSC Visitor Complex, which included comments by Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott. Scott is a former astronaut who flew on Columbia in 1997.

KENNEDY SPACE CENTER, FLA. - Center Director Jim Kennedy (right) speaks to attendees at a memorial service honoring the crew of Columbia. Behind him are KSC Deputy Director Woodrow Whitlow Jr. and Executive Director of Florida Space Authority Winston Scott, who is a former astronaut who flew on Columbia in 1997. They are standing in front of the Space Memorial Mirror at the KSC Visitor Complex. Attended by many friends, co-workers and families, the memorial service was also open to the public, some of whom are seen at left. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107.

KENNEDY SPACE CENTER, FLA. - Friends, co-workers and families gather at the Space Memorial Mirror for KSC’s special service remembering and honoring the crew of Columbia. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was invited to the memorial service held at the KSC Visitor Complex. Participants included Center Director Jim Kennedy, Deputy Director Woodrow Whitlow Jr., Executive Director of Florida Space Authority Winston Scott, Dr. Stephen Feldman, president of the Astronaut Memorial Foundation, and dancers from the Shoshone-Bannock Native American community in Fort Hall, Idaho.

KENNEDY SPACE CENTER, FLA. - Dancers from the Shoshone-Bannock Junior-Senior High School, Fort Hall, Idaho, perform a healing ceremony during the memorial service held at the Space Memorial Mirror for the crew of Columbia. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. Students and staff of the Shoshone-Bannock Nation had an experiment on board Columbia. The public was invited to the memorial service, held in the KSC Visitor Complex, which included comments by Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott. Scott is a former astronaut who flew on Columbia in 1997.

KENNEDY SPACE CENTER, FLA. - During a memorial service remembering and honoring the crew of Columbia, President of the Astronaut Memorial Foundation Dr. Stephen Feldman, Executive Director of Florida Space Authority Winston Scott, KSC Deputy Director Woodrow Whitlow Jr. and Center Director Jim Kennedy pause after placing a wreath in front of the Space Memorial Mirror. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. Scott is a former astronaut who flew on Columbia in 1997. The public was also invited to the memorial service.

KENNEDY SPACE CENTER, FLA. - Friends, co-workers and families gather at the Space Memorial Mirror for KSC’s special service remembering and honoring the crew of Columbia. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was invited to the memorial service held at the KSC Visitor Complex. Participants included Center Director Jim Kennedy, Deputy Director Woodrow Whitlow Jr., Executive Director of Florida Space Authority Winston Scott, Dr. Stephen Feldman, president of the Astronaut Memorial Foundation, and dancers from the Shoshone-Bannock Native American community in Fort Hall, Idaho.

KENNEDY SPACE CENTER, FLA. - Standing in front of the Space Memorial Mirror at the KSC Visitor Complex, KSC Deputy Director Woodrow Whitlow Jr., Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott bow their heads in prayer during a memorial service remembering and honoring the crew of Columbia. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. Scott is a former astronaut who flew on Columbia in 1997. The public was also invited to the memorial service.

KENNEDY SPACE CENTER, FLA. - Dancers from the Shoshone-Bannock Junior-Senior High School, Fort Hall, Idaho, perform a healing ceremony during the memorial service held at the Space Memorial Mirror for the crew of Columbia. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. Students and staff of the Shoshone-Bannock Nation had an experiment on board Columbia. The public was invited to the memorial service, held in the KSC Visitor Complex, which included comments by Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott. Scott is a former astronaut who flew on Columbia in 1997.

KENNEDY SPACE CENTER, FLA. - Following the memorial service held at the Space Memorial Mirror for the crew of Columbia, visitors place roses in the wire mesh fence surrounding the mirror. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was invited to the memorial service, held in the KSC Visitor Complex, which included comments by Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott. Scott is a former astronaut who flew on Columbia in 1997.

KENNEDY SPACE CENTER, FLA. - Following the memorial service for the crew of Columbia at the Space Memorial Mirror, visitors place roses in the wire mesh fence surrounding the mirror. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. Scott is a former astronaut who flew on Columbia in 1997. The public was invited to the memorial service, which included comments by Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott. Scott is a former astronaut who flew on Columbia in 1997.

KENNEDY SPACE CENTER, FLA. - Friends, co-workers and families gather at the Space Memorial Mirror for KSC’s special service remembering and honoring the crew of Columbia. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was invited to the memorial service held at the KSC Visitor Complex. Participants included Center Director Jim Kennedy, Deputy Director Woodrow Whitlow Jr., Executive Director of Florida Space Authority Winston Scott, Dr. Stephen Feldman, president of the Astronaut Memorial Foundation, and dancers from the Shoshone-Bannock Native American community in Fort Hall, Idaho.

KENNEDY SPACE CENTER, FLA. - Following the memorial service for the crew of Columbia at the Space Memorial Mirror, Louise Kleba, who is with United Space Alliance, joins other visitors placing roses in the wire mesh fence surrounding the mirror. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was invited to the memorial service, held in the KSC Visitor Complex, which included comments by Center Director Jim Kennedy and Executive Director of Florida Space Authority Winston Scott. Scott is a former astronaut who flew on Columbia in 1997.

KENNEDY SPACE CENTER, FLA. - In front of the Space Memorial Mirror at the KSC Visitor Complex, Center Director Jim Kennedy (right) speaks to visitors gathered for the memorial service honoring the crew of Columbia. At left are KSC Deputy Director Woodrow Whitlow Jr. and Executive Director of Florida Space Authority Winston Scott; at right is Dr. Stephen Feldman, president of the Astronaut Memorial Foundation. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. The public was also invited to the memorial service held at the KSC Visitor Complex.

KENNEDY SPACE CENTER, FLA. - Center Director Jim Kennedy (right) speaks to attendees at a memorial service honoring the crew of Columbia. At left are KSC Deputy Director Woodrow Whitlow Jr. and Executive Director of Florida Space Authority Winston Scott, who was an invited speaker. Scott is a former astronaut who flew on Columbia in 1997. They are standing in front of the Space Memorial Mirror at the KSC Visitor Complex. Feb. 1 is the one-year anniversary of the loss of the crew and orbiter Columbia in a tragic accident as the ship returned to Earth following mission STS-107. Attended by many friends, co-workers and families, the memorial service was also open to the public.

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 NASA Astronaut Scott Kelly waits for his space suit gloves to be put on as he and his fellow crew members, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) have their Russian sokol suits pressure checked ahead of their launch onboard the Soyuz TMA-16M spacecraft to the International Space Station Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 43 NASA Astronaut Scott Kelly is seen as he and, Russian cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) participate in a crew press conference, Thursday, March 26, 2015, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Kornienko, and Padalka launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 NASA Astronaut Scott Kelly inspects the Soyuz TMA-16M spacecraft during the final check of the spacecraft with Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos), Monday, March 23, 2015 at the Baikonur Cosmodrome in Kazakhstan. Kelly, Kornienko, and Padalka are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly dons his Russian sokol suit ahead of his launch onboard the Soyuz TMA-16M spacecraft to the International Space Station with fellow crew mates, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) Friday, March 27, 2015 in Baikonor, Kazakhstan. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 prime crew members: NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), and backup crew members Sergei Volkov, and Alexey Ovchinin and of Roscosmos, and NASA Astronaut Jeff Williams walk along the Avenue of the Cosmonauts where two long rows of trees are all marked with the name and year of the crew member who planted them starting from Yuri Gagarin's tree, Saturday, March 21, 2015, Baikonur, Kazakhstan. Expedition 43 NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly is seen as he and his fellow crew members, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) have their Russian sokol suits pressure checked ahead of their launch onboard the Soyuz TMA-16M spacecraft to the International Space Station Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 43 Russian Cosmonauts Gennady Padalka, left, and Mikhail Kornienko talk as fellow crew member NASA Astronaut Scott Kelly has his Russian sokol suit pressure checked for launch onboard the Soyuz TMA-16M spacecraft to the International Space Station Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: ((NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly adjust his cap as he and his fellow crew members, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) have their Russian sokol suits pressure checked ahead of their launch onboard the Soyuz TMA-16M spacecraft to the International Space Station Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 Russian Cosmonaut Gennady Padalka, of the Russian Federal Space Agency (Roscosmos) sits down to have his Russian sokol suit pressure checked ahead of his launch onboard the Soyuz TMA-16M spacecraft to the International Space Station with fellow crew members NASA Astronaut Scott Kelly, and Russian Cosmonaut Mikhail Kornienko Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 Russian Cosmonaut Gennady Padalka of the Russian Federal Space Agency (Roscosmos) dons his Russian sokol suit ahead of his launch onboard the Soyuz TMA-16M spacecraft to the International Space Station with fellow crew mates, NASA Astronaut Scott Kelly, and Russian Cosmonaut Mikhail Kornienko Friday, March 27, 2015 in Baikonor, Kazakhstan. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 43 prime and backup crews arrive at the Cosmonaut Hotel during media day, Saturday, March 21, 2015, Baikonur, Kazakhstan. Expedition 43 NASA Astronaut Scott Kelly, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, left, and Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) talk to family, friends, and officials from behind glass before departing for their launch onboard the Soyuz TMA-16M spacecraft to the International Space Station Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Head of Russian Federal Space Agency (Roscosmos) Igor Komarov is seen during the State Commission meeting to approve the Soyuz launch of Expedition 43 to the International Space Station, Thursday, March 26, 2015, at the Cosmonaut Hotel in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

201503040001hq (03/04/2015) --- NASA Astronaut Scott Kelly is seen inside a Soyuz simulator at the Gagarin Cosmonaut Training Center (GCTC), Wednesday, Mar. 4, 2105 in Star City, Russia. Kelly, along with Expedition 43 Russian cosmonaut Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), and Russian cosmonaut Gennady Padalka of Roscosmos were at GCTC for the second day of qualification exams in preparation for their launch to the International Space Station onboard a Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 Russian Cosmonaut Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) prepares to have his Russian sokol suit pressure checked ahead of his launch onboard the Soyuz TMA-16M spacecraft to the International Space Station with fellow crew mates NASA Astronaut Scott Kelly, center, and Russian Cosmonaut Gennady Padalka Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 43 NASA Astronaut Scott Kelly, left, Russian cosmonauts Gennady Padalka, center, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos), are sen in quarentine behind glass during the State Commission meeting to approve the Soyuz launch to the International Space Station, Thursday, March 26, 2015, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kelly, Kornienko, and Padalka launched to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit (NASA/Bill Ingalls)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

Expedition 43 NASA Astronaut Scott Kelly climbs the stairs to enter the Soyuz TMA-16M spacecraft during the final check of the spacecraft with Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos), Monday, March 23, 2015 at the Baikonur Cosmodrome in Kazakhstan. Kelly, Kornienko, and Padalka are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly dons his Russian sokol suit ahead of his launch onboard the Soyuz TMA-16M spacecraft to the International Space Station with fellow crew mates, Russian Cosmonauts Gennady Padalka, and Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) Friday, March 27, 2015 in Baikonor, Kazakhstan. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/GCTC/Andrey Shelepin)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

The Soyuz rocket and Soyuz TMA-16M spacecraft are assembled at Building 112 on the Baikonur Cosmodrome on Tuesday, March 24, 2015 in Baikonur, Kazakhstan. NASA Astronaut Scott Kelly, and Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)

A Soyuz TMA-16M spacecraft access panel and inspection sticker is seen on the fairing during the final check of the spacecraft with Expedition 43 NASA Astronaut Scott Kelly, Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) inside, Monday, March 23, 2015 at the Baikonur Cosmodrome in Kazakhstan. Kelly, Kornienko, and Padalka are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-16M spacecraft and fairing are seen during the final check of the spacecraft with Expedition 43 NASA Astronaut Scott Kelly, Russian Cosmonauts Mikhail Kornienko, and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) inside, Monday, March 23, 2015 at the Baikonur Cosmodrome in Kazakhstan. Kelly, Kornienko, and Padalka are scheduled to launch to the International Space Station in the Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 NASA Astronaut Scott Kelly, left, Russian cosmonaut Gennady Padalka of the Russian Federal Space Agency (Roscosmos), center, and Russian cosmonaut Mikhail Kornienko of Roscosmos walk along the Kremlin Wall in Red Square to leave roses at the site where Russian space icons are interred as part of traditional pre-launch ceremonies, Friday, March 6, 2015, Moscow, Russia. The trio is preparing for launch to the International Space Station in their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time. As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Bill Ingalls)

Expedition 43 Russian Cosmonaut Mikhail Kornienko of the Russian Federal Space Agency (Roscosmos) waves farewell to family and friends as he and fellow crew members NASA Astronaut Scott Kelly, and Russian Cosmonaut Gennady Padalka depart building 254 for their launch onboard the Soyuz TMA-16M spacecraft to the International Space Station Friday, March 27, 2015 in Baikonor, Kazakhstan. Kelly, Padalka, and Kornienko launched to the ISS from the Baikonur Cosmodrome in Kazakhstan March 28, Kazakh time (March 27 Eastern time.) As the one-year crew, Kelly and Kornienko will return to Earth on Soyuz TMA-18M in March 2016. Photo Credit: (NASA/Victor Zelentsov)