Expedition 29 Soyuz Commander Anton Shkaplerov speaks during the State Commission meeting to approve the Soyuz launch of Expedition 29 to the International Space Station, Saturday, Nov. 12, 2011 at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission is set to launch November 14 from the Baikonur Cosmodrome. Photo Credit: (NASA/Carla Cioffi)

Musician Ben Folds performs at the the National Day of Service on the National Mall, Saturday, January 19, 2013, in Washington. NASA along with other federal agencies set up along the Mall as part of events surrounding the inauguration of President Barack Obama. Photo Credit: (NASA/Carla Cioffi)

Expedition 30 Commander Dan Burbank is seen as he is extracted from the Soyuz TMA-22 spacecraft shortly after the capsule landed with Russian flight engineers Anton Shkaplerov and Anatoly Ivanishin in a remote area outside of the town of Arkalyk, Kazakhstan on Friday, April 27, 2012. Burbank, Ivanishin, and Shkaplerov are returning from more than five months onboard the International Space Station where they served as members of the Expedition 29 and 30 crews. Photo Credit: (NASA/Carla Cioffi)

NASA astronaut Joe Acaba answers questions at a behind-the-scenes NASA Social at NASA Headquarters on Tuesday, Dec. 4, 2012 in Washington. Acaba launched to the International Space Station on a Russian Soyuz spacecraft May 15, 2012, spending 123 days aboard as a flight engineer of the Expedition 31 and 32 crews. He recently returned to Earth on Sept. 17 after four months in low earth orbit. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-07M rocket launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Dec. 19, 2012 carrying Expedition 34 NASA Flight Engineers Tom Marshburn, Soyuz Commander Roman Romanenko and Flight Engineer Chris Hadfield of the Canadian Space Agency (CSA) to the International Space Station. Their Soyuz TMA-07M rocket launched at 6:12 p.m. local time. Photo Credit: (NASA/Carla Cioffi)

NASA Lunar Atmosphere and Dust Environment Explorer (LADEE) Program Scientist Sarah Noble talks during a NASA Social about the LADEE mission at NASA Wallops Flight Facility, Thursday, Sept. 5, 2013 on Wallops Island, VA. Fifty of NASA's social media followers are attending a two-day event in support of the LADEE launch. Data from LADEE will provide unprecedented information about the environment around the moon and give scientists a better understanding of other planetary bodies in our solar system and beyond. LADEE is scheduled to launch at 11:27 p.m. Friday, Sept. 6, from NASA's Wallops Flight Facility. Photo Credit: (NASA/Carla Cioffi)

Launch pad engineers at the Baikonur Cosmodrome in Kazakhstan are dwarfed by the large gantry mechanisms at the base of the Soyuz TMA-08M rocket following its rollout to the pad on Tuesday, March 26, 2013. The rocket is being prepared for launch on March 29 to carry the crew of Expedition 35 to the International Space Station. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-01M rocket launches from the Baikonur Cosmodrome in Kazakhstan on Friday, October 8, 2010 carrying Expedition 25 Soyuz Commander Alexander Kaleri of Russia, NASA Flight Engineer Scott J. Kelly and Russian Flight Engineer Oleg Skripochka to the International Space Station. Their Soyuz TMA-01M rocket launched at 5:10 a.m Kazakhstan time. (Photo Credit: NASA/Carla Cioffi)

Expedition 32 NASA Flight Engineer Joe Acaba, left, Expedition 32 Commander Gennady Padalka, center, and Flight Engineer Sergei Revin sit in chairs outside the Soyuz Capsule just minutes after they landed in a remote area outside the town of Arkalyk, Kazakhstan, on Monday, Sept. 17, 2012. Acaba, Padalka and Revin are returning from five months onboard the International Space Station where they served as members of the Expedition 31 and 32 crews. Photo Credit: (NASA/Carla Cioffi)

Expedition 35 Commander Chris Hadfield of the Canadian Space Agency (CSA) is attended to by his nurse following his landing in the Soyuz TMA-07M spacecraft in a remote area near the town of Zhezkazgan, Kazakhstan, Tuesday, May 14, 2013. Hadfield and crew mates NASA Flight Engineer Tom Marshburn and Russian Flight Engineer Roman Romanenko of the Russian Federal Space Agency (Roscosmos) returned to earth from more than five months onboard the International Space Station where they served as members of the Expedition 34 and 35 crews. Photo Credit: (NASA/Carla Cioffi)

The Soyuz rocket is rolled out to the launch pad by train on Monday, Sept. 23, 2013, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for September 26 and will send Expedition 37 Soyuz Commander Oleg Kotov, NASA Flight Engineer Michael Hopkins and Russian Flight Engineer Sergei Ryazansky on a five and a half-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-01M spacecraft is raised into vertical position at the launch pad of the Baikonur Cosmodrome, Kazakhstan, Tuesday, Oct. 5, 2010. The TMA-01M is a new modified Soyuz vehicle that features upgraded avionics and a digital cockpit display. The crew of Expedition 25 Soyuz Commander Alexander Kaleri, NASA Flight Engineer Scott Kelly and Russian Flight Engineer Oleg Skripochka is scheduled for Friday, Oct. 8, 2010 at 5:10 a.m. Kazakhstan time. Photo Credit: (NASA/Carla Cioffi)

William Gerstenmaier, Associate Administrator, Human Exploration and Operations Mission Directorate, NASA Headquarters, testifies during a hearing before the House Committee on Science, Space, and Technology regarding access to and sustainability of the International Space Station, Wednesday, March 28, 2012 at the Rayburn House Office Building in Washington. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-07M rocket launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, Dec. 19, 2012 carrying Expedition 34 NASA Flight Engineers Tom Marshburn, Soyuz Commander Roman Romanenko and Flight Engineer Chris Hadfield of the Canadian Space Agency (CSA) to the International Space Station. Their Soyuz TMA-07M rocket launched at 6:12 p.m. local time. Photo Credit: (NASA/Carla Cioffi)

Tom Woods, (second from right), principal investigator, Extreme Ultraviolet Variability Experiment instrument, Laboratory for Atmospheric and Space Physics, University of Colorado in Boulder speaks during a briefing to discuss recent images from NASA's Solar Dynamics Observatory, or SDO, Wednesday, April 21, 2010, at the Newseum in Washington. Photo Credit: (NASA/Carla Cioffi)

Jim Green, director, Planetary Division, NASA's Science Mission Directorate, speaks at a public event at NASA Headquarters observing the first anniversary of the Curiosity rover's landing on Mars, Tuesday, August 6th, 2013 in Washington. The Mars Science Laboratory mission successfully placed the one-ton Curiosity rover on the surface of Mars on Aug. 6, 2012, about 1 mile from the center of its 12-mile-long target area. Within the first eight months of a planned 23-months primary mission, Curiosity met its major science objective of finding evidence of a past environment well-suited to support microbial life. Photo Credit: (NASA/Carla Cioffi)

Holli Riebeek, Education and Public Outreach Lead for NASA/Landsat Mission at NASA's Goddard Spaceflight Center, is seen speaking to students at NASA's Earth Day Science Gallery Exhibit, Monday, April 22, 2013 at Union Station in Washington. The NASA Science Gallery exhibits are being sponsored by NASA in honor of Earth Day. (Photo Credit: NASA/Carla Cioffi)

William Gerstenmaier (second from right), NASA Associate Administrator Human Exploration and Operations speaks at a press conference following the successful single-day launch-to-docking of the Soyuz TMA-08M with the International Space Station on Friday, March 29, 2013 at the Baikonur Hotel in Baikonur, Kazakhstan. The Soyuz reached the station in less than six hours and after only four orbits, instead of its usual two-day route, carrying the Expedition 35 crew of Soyuz Commander Pavel Vinogradov, NASA Flight Engineer Chris Cassidy and Russian Flight Engineer Alexander Misurkin. Photo Credit: (NASA/Carla Cioffi)

John Grunsfeld (far left), Associate Administrator for the Science Mission Directorate at NASA Headquarters, Dr. Francisco Javier Mendieta Jimenez, Director General of the Mexican Space Agency, NASA Administrator Charles Bolden, Leland Melvin, NASA Associate Administrator for Education and Al Condes (far right), Deputy Associate Administrator for International and Interagency Relations pose for a photo, Monday, March 18, 2013 at NASA Headquarters in Washington. A Reimbursable Space Act Agreement (RSAA) for a NASA International Internship Program was signed between the two agencies. This is the first NASA-Mexico agreement signed. Photo Credit: (NASA/Carla Cioffi)

Twitter user Karim Jazouani from Casablanca, Morocco, who goes by the twitter name @karimjazouani, uses his laptop during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Expedition 35/36 NASA astronaut Chris Cassidy, left on screen, is seen on a live feed from the International Space Station as they participate in a public event at NASA Headquarters observing the first anniversary of the Curiosity rover's landing on Mars, Tuesday, August 6th, 2013 in Washington. Photo Credit: (NASA/Carla Cioffi)

Expedition 25 NASA Flight Engineer Scott Kelly of the U.S., left, and Soyuz Commander Alexander Kaleri have their Russian Sokol suits prepared for launch by technicians at the Baikonur Cosmodrome in Kazakhstan, Friday, Oct. 8, 2010. (Photo Credit: NASA/Carla Cioffi)

Expedition 28 Soyuz Commander Sergei Volkov has his Russian Sokol suit pressure checked in preparation for his launch to the International Space Station, Tuesday, June 7, 2011 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft will launch the following morning on June 8 carrying Volkov, NASA Flight Engineer Mike Fossum and JAXA (Japanese Aerospace Exploration Agency) Flight Engineer Satoshi Furukawa. Photo Credit: (NASA/Carla Cioffi)

John Grunsfeld (at podium), Associate Administrator for the Science Mission Directorate at NASA Headquarters, asks one last question of the Mars Curiosity rover panel, Tuesday, March 12, 2013 in Washington. The news conference covered the findings that the analysis of the rock sample collected shows ancient Mars could have supported living microbes. Photo Credit: (NASA/Carla Cioffi)

Expedition 28 NASA Flight Engineer Mike Fossum, left, looks on as Soyuz Commander Sergei Volkov speaks during a press conference, Monday, June 6, 2011, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission is set to launch on Tuesday, June 8, from the Baikonur Cosmodrome. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-08M rocket launches from the Baikonur Cosmodrome in Kazakhstan on Friday, March 29, 2013 carrying Expedition 35 Soyuz Commander Pavel Vinogradov, NASA Flight Engineer Chris Cassidy and Russian Flight Engineer Alexander Misurkin to the International Space Station. Their Soyuz rocket launched at 2:43 a.m. local time. Photo Credit: (NASA/Carla Cioffi)

Expedition 27 Soyuz Commander Alexander Samokutyaev has his Russian Sokol suit prepared for launch by a technician at the Baikonur Cosmodrome in Baikonur, Kazakhstan, Tuesday, April 5, 2011. Samokutyaev, NASA Flight Engineer Ron Garan and Russian Flight Engineer Andrey Borisenko launched in their Soyuz TMA-21 rocket from the Baikonur Cosmodrome in Kazakhstan at 4:18 a.m. local time. (Photo Credit: NASA/Carla Cioffi)

Expedition 23 Flight Engineer Tracy Caldwell Dyson performs the traditional door signing Friday, April 2, 2010 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Caldwell Dyson was launched onboard the Soyuz rocket later that day with Expedition 23 Soyuz Commander Alexander Skvortsov and Flight Engineer Mikhail Kornienko on a mission to the International Space Station (ISS). Photo Credit: (NASA/Carla Cioffi)

Expedition 26 European Space Agency astronaut Paolo Nespoli has his Russian Sokol suit pressure checked at the Baikonur Cosmodrome in Baikonur, Kazakhstan, Wednesday, Dec. 15, 2010. Nespoli and fellow Expedition 26 crew members Soyuz Commander Dmitry Kondratryev and NASA Flight Engineer Catherine Coleman launched in their Soyuz TMA-20 rocket from the Baikonur Cosmodrome in Kazakhstan the following morning at 1:09 a.m. local time. (Photo Credit: NASA/Carla Cioffi)

Expedition 37/38 crew members, Flight Engineer Michael Hopkins of NASA, left, Soyuz Commander Oleg Kotov of Roscosmos, and Russian Flight Engineer Sergey Ryazanskiy, right, wave farewell to family and friends as they depart the Cosmonaut Hotel to suit-up for their soyuz launch to the International Space Station on Wednesday, Wednesday, Sept. 25, 2013, in Baikonur, Kazakhstan. Launch of the Soyuz rocket will send Hopkins, Kotov and Ryazanskiy on a five-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

An Orthodox priest blesses the Soyuz rocket at the Baikonur Cosmodrome Launch pad on Friday, July 13, 2012 in Kazakhstan. The launch of the Soyuz spacecraft with Expedition 32 Soyuz Commander Yuri Malenchenko, NASA Flight Engineer Sunita Williams and JAXA (Japan Aerospace Exploration Agency) Flight Engineer Akihiko Hoshide is scheduled for the morning of Sunday, July 15, local time. Photo Credit: (NASA/Carla Cioffi)

NASA Astronaut and Expeditions 23 and 24 Flight Engineer, Tracy Caldwell Dyson, speaks at a Women's History Month event at NASA Headquarters, Wednesday, March 16, 2011 in Washington. The event entitled Women Inspiring the Next Generation to Reveal the Unknown is a joint venture with NASA and the White House Council on Women and Girls. Caldwell Dyson recently returned from a six-month stay aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

The Soyuz rocket is rolled out to the launch pad by train on Monday, Sept. 23, 2013, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for September 26 and will send Expedition 37 Soyuz Commander Oleg Kotov, NASA Flight Engineer Michael Hopkins and Russian Flight Engineer Sergei Ryazansky on a five and a half-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

Expedition 37/38 NASA Engineer Michael Hopkins has his Russian Sokol suit pressure checked ahead of his launch onboard a Soyuz TMA-10M spacecraft to the International Space Station with fellow crewmates Russian Flight Engineer Sergey Ryazanskiy and Soyuz Commander Oleg Kotov, on Wednesday, Sept. 25, 2013, in Baikonur, Kazakhstan. Launch of the Soyuz rocket will send the Expedition 37/38 crewmates on a five-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

Expedition 25 NASA Flight Engineer Scott Kelly of the U.S., left, Soyuz Commander Alexander Kaleri and Flight Engineer Oleg Skripochka, right, have their Russian Sokol suits prepared for launch by technicians at the Baikonur Cosmodrome in Kazakhstan, Friday, Oct. 8, 2010. (Photo Credit: NASA/Carla Cioffi)

Expedition 34/35 Flight Engineer and Expedition 35 ISS Commander Chris Hadfield, of the Canadian Space Agency (CSA), performs the traditional door signing before he and fellow cremates, Flight Engineer Tom Marshburn, and Soyuz Commander Roman Romanenko depart the Cosmonaut Hotel for their Soyuz launch to the International Space Station on Wednesday, Dec. 19, 2012, in Baikonur, Kazakhstan. Launch of the Soyuz rocket will send Hadfield, Romanenko and Marshburn on a five-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

Lori Garver, NASA Deputy Administrator gave opening remarks at an event at NASA Headquarters celebrating National Women's History Month, Thursday, March 14, 2013 in Washington. This year's keynote speaker was Donna Brazile, adjunct professor at Georgetown University, syndicated newspaper columnist and vice chair of voter registration and participation at the Democratic National Committee (DNC). The theme of this year's program was "Women Inspiring Innovation Through Imagination." Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-05M rocket launches from the Baikonur Cosmodrome in Kazakhstan on Sunday, July 15, 2012 carrying Expedition 32 Soyuz Commander Yuri Malenchenko, NASA Flight Engineer Sunita Williams and JAXA (Japan Aerospace Exploration Agency) Flight Engineer Akihiko Hoshide to the International Space Station. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-01M spacecraft is rolled out by train to the launch pad at the Baikonur Cosmodrome, Kazakhstan, Tuesday, Oct. 5, 2010. The TMA-01M is a new modified Soyuz vehicle that features upgraded avionics and a digital cockpit display. The crew of Expedition 25 Soyuz Commander Alexander Kaleri, NASA Flight Engineer Scott Kelly and Russian Flight Engineer Oleg Skripochka is scheduled for Friday, Oct. 8, 2010 at 5:10 a.m. Kazakhstan time. Photo Credit (NASA/Carla Cioffi)

Cora B. Marrett, PhD, Acting Director, National Science Foundation gives keynote remarks at the NASA Education Stakeholders’ Summit One Stop Shopping Initiative (OSSI), Monday, Sep. 13, 2010, at the Westfields Marriott Conference Center in Chantilly, VA. (Photo Credit: NASA/Carla Cioffi)

The Soyuz TMA-02M spacecraft is seen at the launch pad after being raised into vertical position on Sunday, June 5, 2011 at the Baikonur Cosmodrome in Kazakhstan. The launch of the Soyuz spacecraft with Expedition 28 Soyuz Commander Sergei Volkov of Russia, NASA Flight Engineer Mike Fossum and JAXA (Japan Aerospace Exploration Agency) Flight Engineer Satoshi Furukawa is scheduled for Wednesday, June 8, 2011. Photo Credit: (NASA/Carla Cioffi)

Expedition 30 Commander Daniel Burbank is seen in a gift of traditional Kazakhstan dress during a welcome ceremony at the Kostanay Airport in Kazakhstan on Friday, April 27, 2012. NASA Astronaut Burbank, and Russian Cosmonauts Anton Shkaplerov and Anatoly Ivanishin returned from more than five months onboard the International Space Station where they served as members of the Expedition 29 and 30 crews. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-02M spacecraft launches from the Baikonur Cosmodrome in Kazakhstan early Wednesday, June 8, 2011 carrying Expedition 28 Soyuz Commander Sergei Volkov of Russia, NASA Flight Engineer Mike Fossum and JAXA (Japan Aerospace Exploration Agency) Flight Engineer Satoshi Furukawa to the International Space Station. Photo Credit: (NASA/Carla Cioffi)

The Soyuz rocket is seen on its launch pad shortly after being lifted into its upright position on Tuesday March 26, 2013, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for March 29 and will send Expedition 35 Soyuz Commander Pavel Vinogradov, and Flight Engineers Chris Cassidy of NASA and Alexander Misurkin of Russia on a five and a half-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-07M spacecraft is seen as it lands with Expedition 35 Commander Chris Hadfield of the Canadian Space Agency (CSA), NASA Flight Engineer Tom Marshburn and Russian Flight Engineer Roman Romanenko of the Russian Federal Space Agency (Roscosmos) in a remote area near the town of Zhezkazgan, Kazakhstan, on Tuesday, May 14, 2013. Hadfield, Marshburn and Romanenko returned from five months onboard the International Space Station where they served as members of the Expedition 34 and 35 crews. Photo Credit: (NASA/Carla Cioffi)

Russian support personnel start to access the crew of Soyuz TMA-07M capsule shortly after it landed with Expedition 35 Commander Chris Hadfield of the Canadian Space Agency (CSA), NASA Flight Engineers Tom Marshburn and Russian Flight Engineer Roman Romanenko of the Russian Federal Space Agency (Roscosmos) in a remote area near the town of Zhezkazgan, Kazakhstan, Tuesday, May 14, 2013. Hadfield, Marshburn and Romanenko are returning from five months onboard the International Space Station where they served as members of the Expedition 34 and 35 crews. Photo Credit: (NASA/Carla Cioffi)

Expedition 35 NASA Flight Engineer Chris Cassidy is helped into his chair in order to pressure check his Russian Sokol suit ahead of his launch onboard a Soyuz TMA-08M spacecraft to the International Space Station, Thursday, March 28, 2013, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket will send Cassidy, Soyuz Commander Pavel Vinogradov and Russian Flight Engineer Alexander Misurkin on a five and a half-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

The doors of the gantry support structure are opened to reveal the Minotaur V rocket on Pad 0B at the Mid-Atlantic Regional Spaceport (MARS) at NASA's Wallops Flight Facility, Friday, Sept. 6, 2013 in Virginia. The Minotaur V will launch NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE). LADEE is a robotic mission that will orbit the moon where it will provide unprecedented information about the environment around the moon and give scientists a better understanding of other planetary bodies in our solar system and beyond. LADEE is scheduled to launch at 11:27 p.m. Friday, Sept. 6, from NASA's Wallops Flight Facility. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-19 spacecraft is raised into vertical position at the launch pad of the Baikonur Cosmodrome in Kazakhstan, Sunday, June 13, 2010. The launch of the Soyuz spacecraft with Expedition 24 NASA Flight Engineers Shannon Walker and Doug Wheelock, and Soyuz Commander Fyodor Yurchikhin of Russia is scheduled for Wednesday, June 16, 2010 at 3:35 a.m. Kazakhstan time. Photo Credit (NASA/Carla Cioffi)

The Orion space capsule is seen as it rolls down Pennsylvania Avenue during the inaugural parade honoring President Barack Obama, Monday Jan. 21, 2013, in Washington. Obama was sworn-in as the nation's 44th President earlier in the day. Photo Credit: (NASA/Carla Cioffi)

Expedition 24 Flight Engineer Doug Wheelock, left, answers a reporter’s question during a press conference held at the Cosmonaut Hotel in Baikonur, Kazakhstan, while Soyuz Commander Fyodor Yurchikhin looks on, Monday, June 14, 2010. The launch of the Soyuz spacecraft with Expedition 24 NASA Flight Engineers Shannon Walker and Douglas Wheelock, and Soyuz Commander Fyodor Yurchikhin is scheduled for Wednesday, June 16, 2010 at 3:35 a.m. Kazakhstan time. Photo Credit: (NASA/Carla Cioffi)

William Gerstenmaier, third from right, Associate Administrator for Space Operations answers a reporter’s question during a Soyuz post-docking press conference at the Russian Mission Control Center in Korolev, Russia on Sunday, Oct. 10, 2010. Gerstenmaier is flanked by NASA and ROSCOSMOS senior officials. Photo Credit: (NASA/Carla Cioffi)

Support personnel and film crews are seen working around the space shuttle Endeavour as it traverses through Inglewood, Calif. on Friday, Oct. 12, 2012. Endeavour, built as a replacement for space shuttle Challenger, completed 25 missions, spent 299 days in orbit, and orbited Earth 4,671 times while traveling 122,883,151 miles. Beginning Oct. 30, the shuttle will be on display in the CSC's Samuel Oschin Space Shuttle Endeavour Display Pavilion, embarking on its new mission to commemorate past achievements in space and educate and inspire future generations of explorers. Photo Credit: (NASA/Carla Cioffi)

A large TV screen in Russian Mission Control Center in Korolev, Russia shows Expedition 23 Commander Oleg Kotov, right, welcoming NASA astronaut and Flight Engineer Tracy Caldwell Dyson onboard the International Space Station after she and fellow crew members Expedition 23 Soyuz Commander Alexander Skvortsov and Flight Engineer Mikhail Kornienko docked their Soyuz TMA-18 spacecraft on Sunday, April 4, 2010. Photo Credit: (NASA/Carla Cioffi)

NASA Astronaut Don Pettit, speaks about his experience onboard the International Space Station at a NASA Social exploring science on the ISS at NASA Headquarters, Wednesday, Feb. 20, 2013 in Washington. Photo Credit: (NASA/Carla Cioffi)

Kirk Shireman, third from right, NASA's deputy ISS program manager, answers reporter’s questions during a Soyuz post-docking press conference at the Russian Mission Control Center in Korolev, Russia on Saturday, Dec. 18, 2010. The Soyuz TMA-20 docked to the International Space Station carrying Expedition 26 Soyuz Commander Dmitry Kondratyev, Flight Engineer Catherine Coleman and European Space Agency Flight Engineer Paolo Nespoli. Photo Credit: (NASA/Carla Cioffi)

Quarantined Expedition 32 Soyuz Commander Yuri Malenchenko gives the thumbs up to his family behind glass during a prelaunch press conference held at the Cosmonaut Hotel on Friday, July 13, 2012 in Baikonur, Kazakhstan. The launch of the Soyuz spacecraft with Malenchenko, NASA Flight Engineer Sunita Williams and JAXA Flight Engineer Akihiko Hoshide is scheduled for 8:40 a.m. local time on Sunday, July 15. Photo Credit (NASA/Carla Cioffi)

Expedition 27 NASA Flight Engineer Ron Garan has his Russian Sokol suit prepared for launch by a technician at the Baikonur Cosmodrome in Baikonur, Kazakhstan, Tuesday, April 5, 2011. Garan, Soyuz Commander Alexander Samokutyaev and Russian Flight Engineer Andrey Borisenko launched in their Soyuz TMA-21 rocket from the Baikonur Cosmodrome in Kazakhstan at 4:18 a.m. local time. (Photo Credit: NASA/Carla Cioffi)

Expedition 28 Flight Engineer and NASA astronaut Mike Fossum blows a kiss to well wishers as he departs the Cosmonaut Hotel on the evening before his Soyuz launch to the International Space Station on Tuesday, June 7, 2011 in Baikonur, Kazakhstan. Photo Credit: (NASA/Carla Cioffi)

Expedition 37/38 Soyuz Commander Oleg Kotov, right, and NASA Flight Engineer Michael Hopkins pose for a photo before having their Russian Sokol suits pressure checked ahead of their launch onboard a Soyuz TMA-10M spacecraft to the International Space Station, on Wednesday, Sept. 25, 2013, in Baikonur, Kazakhstan. Launch of the Soyuz rocket will send the Expedition 37/38 crewmates on a five-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

Expedition 26 back up crew members Michael Fossum, left, Anatoly Ivanishin and Satoshi Furukawa are seen talking at the State Commission meeting held at the Cosmonaut Hotel in Baikonur, Kazakhstan on Tuesday, Dec. 14, 2010. Photo Credit: (NASA/Carla Cioffi)

Twitter users arrive for the start of a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Expedition 37 Luca Parmitano of ESA (European Space Agency) pumps his fist minutes after his landing in the Soyuz TMA-09M spacecraft in a remote area outside the town of Zhezkazgan, Kazakhstan, on Monday, Nov. 11, 2013. Parmitano, Expedition 37 Commander Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) and NASA Flight Engineer Karen Nyberg returned to earth after five and a half months on the International Space Station. Photo Credit: (NASA/Carla Cioffi)

Expedition 28 Japan Aerospace Exploration Agency (JAXA) Flight Engineer Satoshi Furukawa, right, speaks as Soyuz Commander Sergei Volkov of Russia looks on during a press conference, Monday, June 6, 2011, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission is set to launch on Tuesday, June 8, from the Baikonur Cosmodrome. Photo Credit: (NASA/Carla Cioffi)

NASA Astronaut and Expeditions 23 and 24 Flight Engineer, Tracy Caldwell Dyson, speaks at a Women's History Month event at NASA Headquarters, Wednesday, March 16, 2011 in Washington. The event entitled Women Inspiring the Next Generation to Reveal the Unknown is a joint venture with NASA and the White House Council on Women and Girls. Caldwell Dyson recently returned from a six-month stay aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-19 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Wednesday, June 16, 2010 carrying Expedition 24 NASA Flight Engineers Shannon Walker and Douglas Wheelock, and Soyuz Commander Fyodor Yurchikhin of Russia to the International Space Station. Their Soyuz TMA-19 rocket launched at 3:35 a.m Kazakhstan time. (Photo Credit: NASA/Carla Cioffi)

Spectators watch as space shuttle Discovery, mounted atop a NASA 747 Shuttle Carrier Aircraft (SCA) flies over the National Air and Space Museum’s Steven F. Udvar-Hazy Center, Tuesday, April 17, 2012, in Chantilly, Va. Discovery, the first orbiter retired from NASA’s shuttle fleet, completed 39 missions, spent 365 days in space, orbited the Earth 5,830 times, and traveled 148,221,675 miles. NASA will transfer Discovery to the National Air and Space Museum to begin its new mission to commemorate past achievements in space and to educate and inspire future generations of explorers. Photo Credit: (NASA/Carla Cioffi)

Expedition 23 NASA Flight Engineer Tracy Caldwell Dyson of the U.S. prepares to have her Russian Sokol suit pressure checked at the Baikonur Cosmodrome in Baikonur, Kazakhstan, Friday, April 2, 2010. Caldwell Dyson and fellow Expedition 23 crewmembers Soyuz Commander Alexander Skvortsov and Flight Engineer Mikhail Kornienko of Russia launched in their Soyuz TMA-18 rocket from the Baikonur Cosmodrome in Kazakhstan on Friday, April 2, 2010. Photo Credit: (NASA/Carla Cioffi)

Archived and restored Apollo 11 moonwalk footage is shown on a large video monitor above panelists at a NASA briefing where restored Apollo 11 moonwalk footage was revealed for the first time at the Newseum, Thursday, July 16, 2009, in Washington, DC. Photo Credit: (NASA/Carla Cioffi)

The flags of the Russia, the United States and Kazakhstan are seen at the launch pad after the Soyuz TMA-19 spacecraft was rolled out by train to the launch pad at the Baikonur Cosmodrome, Kazakhstan, Sunday, June 13, 2010. The launch of the Soyuz spacecraft with Expedition 24 Russian Soyuz Commander Fyodor Yurchikin, and NASA Flight Engineers Shannon Walker and Doug Wheelock is scheduled for Wednesday, June 16, 2010 at 3:35 a.m. Kazakhstan time. Photo Credit (NASA/Carla Cioffi)

NASA Astronaut and STS-127 Mission Commander Mark Polansky, far left, answers questions at the NASA Tweetup event held at NASA Headquarters, September 24, 2009 in Washington. Nearly 200 of NASA’s Twitter followers are in attendance. Photo Credit: (NASA/Carla Cioffi)

Expedition 29 backup crew members Joseph Acaba, left, and Russian Flight Engineer Gennady Padalka share a few words during a press conference held at the Cosmonaut Hotel in Baikonur, Kazakhstan on Saturday, Nov. 12, 2011. Photo Credit: (NASA/Carla Cioffi)

NASA Associate Administrator for the Science Mission Directorate John Grunsfeld is seen in a video monitor during a NASA Social about the Lunar Atmosphere and Dust Environment Explorer (LADEE) mission at the NASA Wallops Flight Facility, Thursday, Sept. 5, 2013 on Wallops Island, VA. Fifty of NASA's social media followers are attending a two-day event in support of the LADEE launch. Data from LADEE will provide unprecedented information about the environment around the moon and give scientists a better understanding of other planetary bodies in our solar system and beyond. LADEE is scheduled to launch at 11:27 p.m. Friday, Sept. 6, from NASA's Wallops Flight Facility. Photo Credit: (NASA/Carla Cioffi)

Twitter user Karim Jazouani from Casablanca, Morocco, who goes by the twitter name @karimjazouani, uses his laptop during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

The Soyuz rocket is seen on its launch pad shortly after being lifted into its upright position on Monday, Sept. 23, 2013, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for September 26 and will send Expedition 37 Soyuz Commander Oleg Kotov, NASA Flight Engineer Michael Hopkins and Russian Flight Engineer Sergei Ryazansky on a five and a half-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

The Soyuz rocket is erected into position after being rolled out to the launch pad by train on Monday, December 17, 2012, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket is scheduled for December 19 and will send Expedition 34/35 Flight Engineer Tom Marshburn of NASA, Soyuz Commander Roman Romanenko and Expedition 35 Commander Chris Hadfield of the Canadian Space Agency (CSA) on a five-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi). Photo Credit: (NASA/Carla Cioffi)

Leland Melvin, NASA Associate Administrator for Education and former astronaut, addresses an assembly at Eliot Hine Middle School in celebration of Black History Month on Friday, March 1, 2013 in Washington. Melvin spoke about his journey to become a NASA astronaut stressing education as key. Photo Credit: (NASA/Carla Cioffi)

A participant at a NASA Social on the Lunar Atmosphere and Dust Environment Explorer (LADEE) mission asks NASA Associate Administrator for the Science Mission Directorate John Grunsfeld a question, Thursday, Sept. 5, 2013 on Wallops Island, VA. Fifty of NASA's social media followers are attending a two-day event in support of the LADEE launch. Data from LADEE will provide unprecedented information about the environment around the moon and give scientists a better understanding of other planetary bodies in our solar system and beyond. LADEE is scheduled to launch at 11:27 p.m. Friday, Sept. 6, from NASA's Wallops Flight Facility. Photo Credit: (NASA/Carla Cioffi)

Gary Lagerloef, Aquarius Principal Investigator, Earth & Space Research, Seattle, speaks at a press conference on NASA's Aquarius/SAC-D mission to study the salinity of Earth's oceans from space on Tuesday, May 17, 2011 at NASA Headquarters in Washington. The mission is a collaboration between NASA and Argentina's space agency Comision Nacional de Actividades Especiales (CONAE), with participation from Brazil, Canada, France and Italy. The Aquarius/SAC-D observatory will launch June 9, 2011 from Vandenberg Air Force Base in California. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-18 spacecraft is raised into position shortly after it was rolled out by train to the launch pad at the Baikonur Cosmodrome, Kazakhstan, Wednesday, March, 31, 2010. The launch of the Soyuz spacecraft with Expedition 23 Soyuz Commander Alexander Skvortsov of Russia, Flight Engineer Mikhail Kornienko of Russia, and NASA Flight Engineer Tracy Caldwell Dyson is scheduled for Friday, April 2, 2010 at 10:04 a.m. Kazakhstan time. Photo Credit (NASA/Carla Cioffi)

John Grant, geologist, Smithsonian National Air and Space Museum in Washington, speaks at a Mars Science Laboratory (MSL) press conference at the Smithsonian's National Air and Space Museum on Friday, July 22, 2011 in Washington. The Mars Science Laboratory (MSL), or Curiosity, is scheduled to launch late this year from NASA's Kennedy Space Center in Florida and land in August 2012. Curiosity is twice as long and more than five times as heavy as previous Mars rovers. The rover will study whether the landing region at Gale crater had favorable environmental conditions for supporting microbial life and for preserving clues about whether life ever existed. Photo Credit: (NASA/Carla Cioffi)

Expedition 31 NASA flight engineer Joe Acaba signs for his Soyuz vehicle simulation test card before senior officials at the Gagarin Cosmonaut Training Center, Tuesday, April 24, 2012 in Star City, Russia, while his fellow crew members Soyuz Commander Gennady Padalka, left, and flight engineer Sergei Revin look on. Acaba, Padalka and Revin are set to launch to the International Space Station May 15 from the Baikonur Cosmodrome in Kazakhstan. Photo Credit: (NASA/Carla Cioffi)

Expedition 24 Flight Enginner Shannon Walker waits to have her Russian Sokol Suit pressure checked at the Baikonur Cosmodrome, Tuesday, June 15, 2010. Walker, Flight Engineer Doug Wheelock and Soyuz Commander Yurchikhin launched in their Soyuz TMA-19 rocket from the Baikonur Cosmodrome in Kazakhstan on Wednesday, June 16, 2010. (Photo Credit: NASA/Carla Cioffi)

U.S. Congresswoman Eddie Bernice Johnson (D-TX) addresses the Symposium on Supporting Underrepresented Minority Males in Science, Technology, Engineering and Mathematics (STEM), Tuesday, February 28, 2012 at NASA Headquarters in Washington. Photo Credit: (NASA/Carla Cioffi)

Spectators are seen as they watch space shuttle Endeavour as it passes by on its way to its new home at the California Science Center in Los Angeles, Saturday, Oct. 13, 2012. Endeavour, built as a replacement for space shuttle Challenger, completed 25 missions, spent 299 days in orbit, and orbited Earth 4,671 times while traveling 122,883,151 miles. Beginning Oct. 30, the shuttle will be on display in the CSC’s Samuel Oschin Space Shuttle Endeavour Display Pavilion, embarking on its new mission to commemorate past achievements in space and educate and inspire future generations of explorers. Photo Credit: (NASA/Carla Cioffi)

Twitter user Dave Gibson from Lawrenceville, GA, who goes by the twitter name @davecgibson, listens to a guest speaker during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Expedition 26 European Space Agency astronaut Paolo Nespoli has his Russian Sokol suit pressure checked, while Expedition 26 Flight Engineer Catherine Coleman, far right, speaks with back up crew member Mike Fossum at the Baikonur Cosmodrome in Baikonur, Kazakhstan, Wednesday, Dec. 15, 2010. Nespoli and fellow Expedition 26 crew members Soyuz Commander Dmitry Kondratryev and NASA Flight Engineer Catherine Coleman launched in their Soyuz TMA-20 rocket from the Baikonur Cosmodrome in Kazakhstan the following morning at 1:09 a.m. local time. (Photo Credit: NASA/Carla Cioffi)

Expedition 30 flight engineer and Russian cosmonaut Anatoly Ivanishin is seen as he is extracted from the Soyuz TMA-22 spacecraft shortly after the capsule landed with Expedition 30 Commander Dan Burbank and flight engineer Anton Shkaplerov in a remote area outside of the town of Arkalyk, Kazakhstan on Friday, April 27, 2012. Ivanishin, Burbank and Shkaplerov are returning from more than five months onboard the International Space Station where they served as members of the Expedition 29 and 30 crews. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-01M rocket launches from the Baikonur Cosmodrome in Kazakhstan on Friday, October 8, 2010 carrying Expedition 25 Soyuz Commander Alexander Kaleri of Russia, NASA Flight Engineer Scott J. Kelly and Russian Flight Engineer Oleg Skripochka to the International Space Station. Their Soyuz TMA-01M rocket launched at 5:10 a.m Kazakhstan time. (Photo Credit: NASA/Carla Cioffi)

Dr. Valerie Neal, curator for the shuttle program in the Space History office at the National Air and Space Museum, attends the transfer ceremony for space shuttle Discovery, Thursday, April 19, 2012, at the Smithsonian's Steven F. Udvar-Hazy Center in Chantilly, Va. Discovery, the first orbiter retired from NASA’s shuttle fleet, which completed 39 missions, spent 365 days in space, orbited the Earth 5,830 times, and traveled 148,221,675 miles will take the place of Enterprise at the center to commemorate past achievements in space and to educate and inspire future generations of explorers at the center. Photo Credit: (NASA/Carla Cioffi)

The Soyuz TMA-20 rocket launches from the Baikonur Cosmodrome in Kazakhstan on Thursday, December 16, 2010 carrying Expedition 26 Soyuz Commander Dmitry Kondratyev of Russia, NASA Flight Engineer Catherine Coleman and European Space Agency astronaut Paolo Nespoli to the International Space Station. (Photo Credit: NASA/Carla Cioffi)

Michael Suffredini, Manager, International Space Station (ISS) Program, center, speaks during the State Commission meeting to approve the Soyuz launch of Expedition 28 to the International Space Station, Monday, June 6, 2011, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission is set to launch on on Tuesday, June 8, from the Baikonur Cosmodrome. Photo Credit: (NASA/Carla Cioffi)

Expedition 35 Soyuz Commander Pavel Vinogradov is seen talking to family members after donning his Russian Sokol suit in preparation for his launch aboard the Soyuz rocket, Thursday, March 28, 2013, at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket will send Vinogradov, Flight Engineer Chris Cassidy and Russian Flight Engineer Alexander Misurkin on a five and a half-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

Expedition 30 ESA (European Space Agency) astronaut Andre Kuipers, center, is seen as he is escorted to the Soyuz launch pad just hours prior to his launch aboard the Soyuz TMA-03M spacecraft to the International Space Station at the Baikonur Cosmodrome in Kazakhstan, Wednesday, Dec. 21 2011. Photo Credit: (NASA/Carla Cioffi)

Expedition 25 NASA Flight Engineer Scott Kelly of the U.S. has his Russian Sokol suit prepared for launch by a technician at the Baikonur Cosmodrome in Kazakhstan, Friday, Oct. 8, 2010. Kelly and fellow Expedition 25 crew members Soyuz Commander Alexander Kaleri and Flight Engineer Oleg Skripochka launched in their Soyuz TMA-01M at 5:10 a.m. Friday morning. (Photo Credit: NASA/Carla Cioffi)

Expedition 32 Flight Engineer Sunita Williams is seen on the TV screen at the Russian Mission Control Center in Korolev, Russia a few hours after the Soyuz TMA-05M docked to the International Space Station on Tuesday, July 17, 2012. Williams boarded the ISS with fellow crew members Soyuz Commander Yuri Malenchenko and JAXA Flight Engineer Akihiko Hoshide. The crew of three launched at 8:40 a.m. Kazakhstan time on Sunday, July 15 from the Baikonur Cosmodrome in Kazakhstan. Photo Credit: (NASA/Carla Cioffi)

Guests at NASA's Kennedy Space Center view the launch of space shuttle Atlantis in Cape Canaveral, Fla., on Monday, Nov. 16, 2009. New Orleans Mayor Ray Nagin, third from left, attended the launch with his family. Space shuttle Atlantis and its six-member crew began the 11-day STS-129 mission to the International Space Station. The shuttle will transport spare hardware to the outpost and return a station crew member who spent more than two months in space. Photo Credit: (NASA/Carla Cioffi)

Adam Reiss, recipient of the 2011 Nobel Prize in Physics and professor of astronomy and physics at Johns Hopkins University speaks at the presentation of the permanent exhibit of the James Webb Space Telescope at the Maryland Science Center on Wednesday, Oct. 26, 2011 in Baltimore. Photo Credit: (NASA/Carla Cioffi)