
NASA ASTRONAUT JEFF WILLIAMS ADDRESSES THE MARSHALL COMMUNITY ALONG WITH STUDENTS FROM THE U.S. SPACE AND ROCKET CENTER AND DESCRIBES HIS EXPERIENCES WHILE SERVING ABOARD THE INTERNATIONAL SPACE AND ROCKET CENTER DURING EXPEDITIONS 47 AND 48.

Expedition 48 crew portrait with 46S crew (Jeff Williams, Oleg Skripochka, Aleksei Ovchinin) and 47S crew (Anatoli Ivanishin, Kate Rubins, Takuya Onishi). Photo Date: June 26, 2015. Location: Building 8, Room 183 - Photo Studio. Photographer: Bill Stafford.

Commander Jeff Williams poses for a photo in the Quest Airlock (A/L) with all of his mission patches. The patches are, from left, STS-101, Soyuz TMA-8, Expedition 13, Soyuz TMA-16, Expedition 21, Expedition 22, Soyuz TMA-20M, Expedition 47, and Expedition 48.

The Soyuz TMA-20M spacecraft is seen as it lands with Expedition 48 crew members NASA astronaut Jeff Williams, Russian cosmonauts Alexey Ovchinin, and Oleg Skripochka of Roscosmos near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-20M spacecraft is seen as it lands with Expedition 48 crew members NASA astronaut Jeff Williams, Russian cosmonauts Alexey Ovchinin, and Oleg Skripochka of Roscosmos near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 48 NASA astronaut Jeff Williams rest in a chairs outside the Soyuz TMA-20M spacecraft a few moments after he and Russian cosmonauts Alexey Ovchinin and Oleg Skripochka of Roscosmos landed in a remote area near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-20M spacecraft is seen as it lands with Expedition 48 crew members NASA astronaut Jeff Williams, Russian cosmonauts Alexey Ovchinin, and Oleg Skripochka of Roscosmos near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-20M spacecraft is seen as it lands with Expedition 48 crew members NASA astronaut Jeff Williams, Russian cosmonauts Alexey Ovchinin, and Oleg Skripochka of Roscosmos near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

The Soyuz TMA-20M spacecraft is seen as it lands with Expedition 48 crew members NASA astronaut Jeff Williams, Russian cosmonauts Alexey Ovchinin, and Oleg Skripochka of Roscosmos near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian Search and Rescue teams arrive at the Soyuz TMA-20M spacecraft shortly after it landed with Expedition 48 crew members NASA astronaut Jeff Williams, Russian cosmonauts Alexey Ovchinin, and Oleg Skripochka of Roscosmos near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian cosmonaut Oleg Skripochka of Roscosmos rest in a chair outside the Soyuz TMA-20M spacecraft a few moments after he and NASA astronaut Jeff Williams, and Russian cosmonaut Alexey Ovchinin of Roscosmos landed in a remote area near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Jeff Williams, left, Russian cosmonaut Alexey Ovchinin of Roscosmos, center, and Russian cosmonaut Oleg Skripochka of Roscosmos are seen inside the Soyuz TMA-20M spacecraft a few moments after they landed in a remote area near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Russian cosmonaut Alexey Ovchinin of Roscosmos rest in a chair outside the Soyuz TMA-20M spacecraft a few moments after he and NASA astronaut Jeff Williams, and Russian cosmonaut Oleg Skripochka of Roscosmos landed in a remote area near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 47-48 crewmember Jeff Williams of NASA flashes a smile as he suits up in his Russian Sokol launch and entry suit March 4 during final pre-launch training. Williams and Alexey Ovchinin and Oleg Skripochka of Roscosmos will launch March 19, Kazakh time, on the Soyuz TMA-20M spacecraft for a six-month mission on the International Space Station. Courtesy of Gagarin Cosmonaut Training Center

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 47-48 crewmember Jeff Williams of NASA is seen in his seat through a window on the Soyuz TMA-20M spacecraft March 4 as he and his crewmates conducted a “fit check” dress rehearsal during pre-launch training. Williams and Alexey Ovchinin and Oleg Skripochka of Roscosmos will launch March 19, Kazakh time, for a six-month mission on the International Space Station. Courtesy of Gagarin Cosmonaut Training Center

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 47-48 crewmember Jeff Williams of NASA is seen in his seat through a window on the Soyuz TMA-20M spacecraft March 4 as he and his crewmates conducted a “fit check” dress rehearsal during pre-launch training. Williams and Alexey Ovchinin and Oleg Skripochka of Roscosmos will launch March 19, Kazakh time, for a six-month mission on the International Space Station. Courtesy of Gagarin Cosmonaut Training Center

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 47-48 crewmember Jeff Williams of NASA strikes a thoughtful look in his Russian Sokol launch and entry suit March 4 during leak checks of the suit as part of pre-launch training. Williams and Alexey Ovchinin and Oleg Skripochka of Roscosmos will launch March 19, Kazakh time, on the Soyuz TMA-20M spacecraft for a six-month mission on the International Space Station. Courtesy of Gagarin Cosmonaut Training Center

NASA astronaut Jeff Williams, left, Russian cosmonaut Alexey Ovchinin of Roscosmos, center, and Russian cosmonaut Oleg Skripochka of Roscosmos sit in chairs outside the Soyuz TMA-20M spacecraft a few moments after they landed in a remote area near the town of Zhezkazgan, Kazakhstan on Wednesday, Sept. 7, 2016(Kazakh time). Williams, Ovchinin, and Skripochka are returning after 172 days in space where they served as members of the Expedition 47 and 48 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 47 ESA crewmember Tim Peake aiding fellow astronauts Expedition 48 crew member (Soyuz 46) Jeff Williams and CSA astronaut David Saint-Jacques during ISS EVA P/P training in Space Vehicle Mockup Training Facility (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photo Date: September 23, 2014. Location: Building 9NW, ISS Airlock. Photographer: Robert Markowitz

Expedition 47 ESA crewmember Tim Peake aiding fellow astronauts Expedition 48 crew member (Soyuz 46) Jeff Williams and CSA astronaut David Saint-Jacques during ISS EVA P/P training in Space Vehicle Mockup Training Facility (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photo Date: September 23, 2014. Location: Building 9NW, ISS Airlock. Photographer: Robert Markowitz

Expedition 47 ESA crewmember Tim Peake aiding fellow astronauts Expedition 48 crew member (Soyuz 46) Jeff Williams and CSA astronaut David Saint-Jacques during ISS EVA P/P training in Space Vehicle Mockup Training Facility (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photo Date: September 23, 2014. Location: Building 9NW, ISS Airlock. Photographer: Robert Markowitz

Date: 09-23-14 Location: Bldg 9NW, ISS Airlock Subject: Expedition 48 crew member (Soyuz 46) Jeff Williams during ISS EVA P/P 1 (PRESS w/cooling) training with CSA astronaut Saint Jacques and Expedition 47 crew member Tim Peake in Space Vehicle Mockup Training Facilities (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photographer: James Blair

Date: 09-23-14 Location: Bldg 9NW, ISS Airlock Subject: Expedition 48 crew member (Soyuz 46) Jeff Williams during ISS EVA P/P 1 (PRESS w/cooling) training with CSA astronaut Saint Jacques and Expedition 47 crew member Tim Peake in Space Vehicle Mockup Training Facilities (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photographer: James Blair

Date: 09-23-14 Location: Bldg 9NW, ISS Airlock Subject: Expedition 48 crew member (Soyuz 46) Jeff Williams during ISS EVA P/P 1 (PRESS w/cooling) training with CSA astronaut Saint Jacques and Expedition 47 crew member Tim Peake in Space Vehicle Mockup Training Facilities (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photographer: James Blair

Date: 09-23-14 Location: Bldg 9NW, ISS Airlock Subject: Expedition 48 crew member (Soyuz 46) Jeff Williams during ISS EVA P/P 1 (PRESS w/cooling) training with CSA astronaut Saint Jacques and Expedition 47 crew member Tim Peake in Space Vehicle Mockup Training Facilities (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photographer: James Blair

Date: 09-23-14 Location: Bldg 9NW, ISS Airlock Subject: Expedition 48 crew member (Soyuz 46) Jeff Williams during ISS EVA P/P 1 (PRESS w/cooling) training with CSA astronaut Saint Jacques and Expedition 47 crew member Tim Peake in Space Vehicle Mockup Training Facilities (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photographer: James Blair

Expedition 47 ESA crewmember Tim Peake aiding fellow astronauts Expedition 48 crew member (Soyuz 46) Jeff Williams and CSA astronaut David Saint-Jacques during ISS EVA P/P training in Space Vehicle Mockup Training Facility (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photo Date: September 23, 2014. Location: Building 9NW, ISS Airlock. Photographer: Robert Markowitz

Date: 09-23-14 Location: Bldg 9NW, ISS Airlock Subject: Expedition 48 crew member (Soyuz 46) Jeff Williams during ISS EVA P/P 1 (PRESS w/cooling) training with CSA astronaut Saint Jacques and Expedition 47 crew member Tim Peake in Space Vehicle Mockup Training Facilities (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photographer: James Blair

Expedition 47 ESA crewmember Tim Peake aiding fellow astronauts Expedition 48 crew member (Soyuz 46) Jeff Williams and CSA astronaut David Saint-Jacques during ISS EVA P/P training in Space Vehicle Mockup Training Facility (SVMTF) ISS Airlock mockup with instructor Megan Murphey. Photo Date: September 23, 2014. Location: Building 9NW, ISS Airlock. Photographer: Robert Markowitz

Aboard their Gagarin Cosmonaut Training Center aircraft, Expedition 47-48 crewmembers Jeff Williams of NASA (left) and Alexey Ovchinin (center) and Oleg Skripochka (right) of Roscosmos affix a sticker of their crew patch to the wall of the cabin as they flew from their training base to the Baikonur Cosmodrome in Kazakhstan March 3. The trio will launch March 19, Kazakh time, in their Soyuz TMA-20M spacecraft for a six-month mission on the International Space Station. Courtesy of Gagarin Cosmonaut Training Center

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 47-48 crewmembers Jeff Williams of NASA (left) and Alexey Ovchinin (center) and Oleg Skripochka (right) of Roscosmos pose for pictures March 4 in front of the scaffolding surrounding their Soyuz TMA-20M spacecraft during final pre-launch training. The trio will launch March 19, Kazakh time, for a six-month mission on the International Space Station. Courtesy of Gagarin Cosmonaut Training Center

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 47-48 crewmembers Jeff Williams of NASA (left) and Alexey Ovchinin (center) and Oleg Skripochka (right) of Roscosmos pose for pictures March 4 in front of their Soyuz TMA-20M spacecraft during final pre-launch training. The trio will launch March 19, Kazakh time, for a six-month mission on the International Space Station. Courtesy of Gagarin Cosmonaut Training Center

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 47-48 crewmembers Jeff Williams of NASA (left) and Alexey Ovchinin (center) and Oleg Skripochka (right) of Roscosmos pose for pictures March 4 in front of their Soyuz TMA-20M spacecraft during final pre-launch training. The trio will launch March 19, Kazakh time, for a six-month mission on the International Space Station. Courtesy of Gagarin Cosmonaut Training Center

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, the Expedition 47-48 prime and backup crewmembers pose for pictures March 4 during pre-launch training. In the front row in their Russian Sokol launch and entry suits are prime crewmembers Jeff Williams of NASA (left) and Alexey Ovchinin (center) and Oleg Skripochka (right) of Roscosmos. In the back row in flight suits are backup crewmembers Shane Kimbrough of NASA (left) and Sergey Ryzhikov (center) and Andre Borisenko (right) of Roscosmos. Williams, Ovchinin and Skripochka will launch March 19, Kazakh time, for a six-month mission on the International Space Station. Courtesy of Gagarin Cosmonaut Training Center

ISS047e149609 (06/11/2016) --- The full crew of Expedition 47 aboard the International Space Station. ESA (European Space Agency) astronaut Timothy Peake (bottom left), NASA astronaut Timothy Kopra (bottom middle) and Roscosmos cosmonaut Yuri Malenchenko (bottom row right) are set to depart the International Space Station and return to Earth June 18, 2016. Russian cosmonauts Oleg Skripochka (top left) and NASA astronaut Jeff Williams (top row middle) and Russian cosmonaut Alexey Ovchinin (top right) will stay on as crew members for the next Expedition--48.