Members of the SOFIA infrared observatory support team gather around Apollo 11 astronaut Buzz Aldrin (in red shirt) during Aldrin's tour of NASA Dryden.

Apollo 11 astronaut Buzz Aldrin and tour guide Mary Ann Harness check out models of the Ares 1 and Ares 5 space vehicles during Aldrin's tour of NASA Dryden.

Astronaut Edwin Buzz Aldrin Lunar Module Pilot at the (LLRF) Lunar Landing Research Facility. Aldrin was one of the third group of astronauts named by NASA in October 1963. On November 11, 1966, he and command pilot James Lovell were launched into space in the Gemini 12 spacecraft on a 4-day flight, which brought the Gemini program to a successful close. Aldrin established a new record for extravehicular activity (EVA), spending 5-1/2 hours outside the spacecraft. He served as lunar module pilot for Apollo 11, July 16-24, 1969, the first manned lunar landing mission. Aldrin followed Neil Armstrong onto the lunar surface on July 20, 1969, completing a 2-hour and 15 minute lunar EVA. In July 1971, Aldrin resigned from NASA. Aldrin has logged 289 hours and 53 minutes in space, of which, 7 hours and 52 minutes were spent in EVA. https://www.nasa.gov/astronauts/biographies/former

Astronaut Edwin Buzz Aldrin Lunar Module Pilot at the (LLRF) Lunar Landing Research Facility. Aldrin was one of the third group of astronauts named by NASA in October 1963. On November 11, 1966, he and command pilot James Lovell were launched into space in the Gemini 12 spacecraft on a 4-day flight, which brought the Gemini program to a successful close. Aldrin established a new record for extravehicular activity (EVA), spending 5-1/2 hours outside the spacecraft. He served as lunar module pilot for Apollo 11, July 16-24, 1969, the first manned lunar landing mission. Aldrin followed Neil Armstrong onto the lunar surface on July 20, 1969, completing a 2-hour and 15 minute lunar EVA. In July 1971, Aldrin resigned from NASA. Aldrin has logged 289 hours and 53 minutes in space, of which, 7 hours and 52 minutes were spent in EVA. https://www.nasa.gov/astronauts/biographies/former

Apollo 11 astronaut Buzz Aldrin autographs NASA Dryden's F-16XL research aircraft, as his crewmate Neil Armstrong had previously done on the other side.

Apollo 11 astronaut Buzz Aldrin tries out the control station for the X-48B Blended Wing Body unmanned subscale demonstrator during a tour of NASA Dryden.

Apollo 11 astronaut Buzz Aldrin (left) and Apollo-Soyuz and space shuttle astronaut Vance Brand discuss Dryden's work on an Orion fit-check crew module mockup.

The Apollo 11 command module Columbia with astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin aboard splashed down at 11:49 a.m. CDT, July 24, 1969, about 812 nautical miles southwest of Hawaii and only 12 nautical miles from the USS Hornet.

NASA Apollo 11 Astronaut Buzz Aldrin, right, and his wife Lois stand at attention in front of the color guard during the opening of the Apollo 40th anniversary celebration held at the National Air and Space Museum, Monday, July 20, 2009 in Washington. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 Astronauts Michael Collins, left, and Buzz Aldrin talk at a private memorial service celebrating the life of Neil Armstrong, Aug. 31, 2012, at the Camargo Club in Cincinnati. Armstrong, the first man to walk on the moon during the 1969 Apollo 11 mission, died Saturday, Aug. 25. He was 82. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 astronaut Buzz Aldrin reads an introduction to Gustav Holst: The Planets Suite during the "Salute to Apollo" ceremony at the Kennedy Center for the Performing Arts, Saturday, July 18, 2009 in Washington. The event was part of NASA's week long celebration of the Apollo 40th Anniversary. Photo Credit: (NASA/Bill Ingalls)

Buzz Aldrin, the second man to walk on the moon, speaks during a press conference, Monday, July 20, 2009, announcing the launch of Moon in Google Earth, an immersive 3D atlas of the Moon, accessible within Google Earth 5.0, Monday, July 20, 2009, at the Newseum in Washington. Photo Credit: (NASA/Bill Ingalls)

Buzz Aldrin, Apollo 11 lunar module pilot, salutes as he is recognized by Vice President Mike Pence during the opening ceremony of the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Bill Ingalls)

Buzz Aldrin, the second man to walk on the moon, speaks during a press conference, Monday, July 20, 2009, announcing the launch of Moon in Google Earth, an immersive 3D atlas of the Moon, accessible within Google Earth 5.0, Monday, July 20, 2009, at the Newseum in Washington. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 astronaut Buzz Aldrin, the second man to walk on the Moon, responds to a question during a live television interview on Monday, July 20, 2009, at NASA Headquarters in Washington. Monday marked the 40th Anniversary of the historic landing. Photo Credit: (NASA/Paul E. Alers)

Buzz Aldrin took this iconic image of a bootprint on the Moon during the Apollo 11 moonwalk on July 20, 1969. https://photojournal.jpl.nasa.gov/catalog/PIA24439

Apollo 11 astronaut Buzz Aldrin, left, meets with Gene Kranz, retired NASA Flight Director and manager, back stage after the "Salute to Apollo" ceremony at the Kennedy Center for the Performing Arts, Saturday, July 18, 2009 in Washington. The event was part of NASA's week long celebration of the Apollo 40th Anniversary. Photo Credit: (NASA/Bill Ingalls)

On the eve of the fortieth anniversary of Apollo 11's first human landing on the Moon, Apollo 11 crew member, Buzz Aldrin speaks during a lecture in honor of Apollo 11 at the National Air and Space Museum in Washington, Sunday, July 19, 2009. Guest speakers included Former NASA Astronaut and U.S. Senator John Glenn, NASA Mission Control creator and former NASA Johnson Space Center director Chris Kraft and the crew of Apollo 11. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 astronaut Buzz Aldrin, the second man to walk on the Moon, speaks during a press conference, Monday, July 20, 2009, announcing the launch of Moon in Google Earth, an immersive 3D atlas of the Moon, accessible within Google Earth 5.0, Monday, July 20, 2009, at the Newseum in Washington. Photo Credit: (NASA/Bill Ingalls)

On the eve of the fortieth anniversary of Apollo 11's first human landing on the Moon, Apollo 11 crew member, Buzz Aldrin speaks during a lecture in honor of Apollo 11 at the National Air and Space Museum in Washington, Sunday, July 19, 2009. Guest speakers included Former NASA Astronaut and U.S. Senator John Glenn, NASA Mission Control creator and former NASA Johnson Space Center director Chris Kraft and the crew of Apollo 11. Photo Credit: (NASA/Bill Ingalls)

Former U.S. Sen. John Glenn, left, and Buzz Aldrin shake hands prior to a memorial service celebrating the life of Neil Armstrong, Thursday, Sept. 13, 2012, at the Washington National Cathedral. Armstrong, the first man to walk on the moon during the 1969 Apollo 11 mission, died Saturday, Aug. 25. He was 82. Photo Credit: (NASA/Bill Ingalls)

On the eve of the fortieth anniversary of Apollo 11's first human landing on the Moon, Apollo 11 crew member, Buzz Aldrin speaks during a lecture in honor of Apollo 11 at the National Air and Space Museum in Washington, Sunday, July 19, 2009. Guest speakers included Former NASA Astronaut and U.S. Senator John Glenn, NASA Mission Control creator and former NASA Johnson Space Center director Chris Kraft and the crew of Apollo 11. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 astronaut Buzz Aldrin delivers remarks during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

Apollo 11 astronaut Buzz Aldrin is seen during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Scott Altman, left, listens as Apollo 11 astronaut Buzz Aldrin reads an introduction to Gustav Holst: The Planets Suite during the "Salute to Apollo" ceremony at the Kennedy Center for the Performing Arts, Saturday, July 18, 2009 in Washington. The event was part of NASA's week long celebration of the Apollo 40th Anniversary. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 astronaut Buzz Aldrin, the second man to walk on the Moon, speaks during a press conference, Monday, July 20, 2009, announcing the launch of Moon in Google Earth, an immersive 3D atlas of the Moon, accessible within Google Earth 5.0, Monday, July 20, 2009, at the Newseum in Washington. Photo Credit: (NASA/Bill Ingalls)

Vice President Mike Pence, center, speaks before introducing President Donald Trump to sign an Executive Order reestablishing the National Space Council, alongside members of the Congress, National Aeronautics and Space Administration, and Commercial Space Companies in the Roosevelt room of the White House in Washington, Friday, June 30, 2017. Vice President Mike Pence will chair the council. Also pictured, are: NASA astronaut Alvin Drew, left, and retired astronaut Buzz Aldrin, right. Photo Credit: (NASA/Aubrey Gemignani)

Apollo 11 astronaut Buzz Aldrin salutes as NASA Administrator Charles Bolden looks on during a wreath laying ceremony as part of NASA's Day of Remembrance, Friday, Feb. 1, 2013, at Arlington National Cemetery. Wreathes were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 astronaut Buzz Aldrin delivers remarks during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

Apollo 11 astronaut Buzz Aldrin delivers remarks during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Scott Altman, left, and Apollo 11 astronaut Buzz Aldrin read an introduction to Gustav Holst: The Planets Suite during the "Salute to Apollo" ceremony at the Kennedy Center for the Performing Arts, Saturday, July 18, 2009 in Washington. The event was part of NASA's week long celebration of the Apollo 40th Anniversary. Photo Credit: (NASA/Bill Ingalls)

Guest, front row from right, U.S. Senator Bill Nelson (D-FL), Apollo 11 Command Module Pilot Michael Collins, U.S. Congresswoman Gabrielle Giffords (D-AZ), and Apollo 11 Lunar Module Pilot Buzz Aldrin, listen during the Apollo 40th anniversary celebration held at the National Air and Space Museum, Monday, July 20, 2009 in Washington. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama poses with Apollo 11 astronauts, from left, Buzz Aldrin, Michael Collins, and Neil Armstrong, Monday, July 20, 2009, in the Oval Office of the White House in Washington, on the 40th anniversary of the Apollo 11 lunar landing. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine, left, meets back stage with former NASA astronaut Buzz Aldrin, prior to giving the keynote speech at the Humans to Mars Summit (H2M), Wednesday, May 9, 2018 at George Washington University in Washington. Bridenstine joined more than 20 NASA scientists and technologists at the three-day event sponsored by Explore Mars Inc. It brought industry, government and the scientific, entertainment and academic communities together to discuss technology developments, foster partnerships, and encourage students to pursue STEAM careers. Photo Credit: (NASA/Bill Ingalls)

Retired NASA Astronaut and Air Force Col. Buzz Aldrin talks with other attendees of NASA's New Space Technology Industry Forum being held at the University of Maryland in College Park on Tuesday, July 13, 2010. During the two-day event, speakers are focusing on the president's fiscal year 2011 budget request for NASA's new Space Technology Program. Representatives from industry, academia and the federal government are in attendance to discuss strategy, development and implementation of NASA's proposed new technology-enabled exploration. Photo Credit: (NASA/Bill Ingalls)

Former Apolo 11 astronaut Buzz Aldrin guest conducts the Space Philharmonic as Ted Kennedy III, left, looks on during a program commemorating Human Spaceflight and the Kennedy Legacy, Wednesday, May 25, 2011, in the concert hall at the John F. Kennedy Center for the Performing Arts in Washington. The event marked the 50th Anniversary of President John F. Kennedy's Special Message to the Congress on Urgent National Needs in which he stated "landing a man on the moon and returning him safely to earth". Photo Credit: (NASA/Paul E. Alers)

Former Apolo 11 astronaut Buzz Aldrin guest conducts the Space Philharmonic as Ted Kennedy III, left, looks on during a program commemorating Human Spaceflight and the Kennedy Legacy, Wednesday, May 25, 2011, in the concert hall at the John F. Kennedy Center for the Performing Arts in Washington. The event marked the 50th Anniversary of President John F. Kennedy's Special Message to the Congress on Urgent National Needs in which he stated "landing a man on the moon and returning him safely to earth". Photo Credit: (NASA/Paul E. Alers)

Apollo astronaut Alan Bean, center, laughs at a comment made by Apollo astronaut Charles Duke, right, as Apollo astronaut Buzz Aldrin, left, looks on during a live television interview on Monday, July 20, 2009, at NASA Headquarters in Washington. Monday marked the 40th Anniversary of the historic landing of Apollo 11 on the Moon. Photo Credit: (NASA/Paul E. Alers)

Apollo 11 astronaut Buzz Aldrin, the second man to walk on the Moon, seated left, responds to a question during a live television interview on Monday, July 20, 2009, at NASA Headquarters in Washington as Apollo 12 astronaut Alan Bean and Apollo 16 astronaut Charles Duke, right look on. The three sat in for interviews with morning talks shows covering the 40th Anniversary of the Apollo 11 landing on the Moon. Photo Credit: (NASA/Paul E. Alers)

Veteran journalist Nick Clooney, seated left back to camera, moderated a panel discussion with Apollo 11 astronaut Buzz Aldrin, far right, Charlie Duke of Apollo 16, John Grunsfeld, of the recent Hubble mission, not seen, and Goddard Space Flight Center deputy director Laurie Leshin, second from left, Monday, July 20, 2009, at the Newseum in Washington as part of the commemoration of the 40th Anniversary of the Apollo 11 moon landing. Photo Credit: (NASA/Bill Ingalls)

Veteran journalist Nick Clooney, seated left back to camera, moderated a panel discussion with Apollo 11 astronaut Buzz Aldrin, far right, Charlie Duke of Apollo 16, John Grunsfeld, of the recent Hubble mission, not seen and Goddard Space Flight Center deputy director Laurie Leshin, second from left, Monday, July 20, 2009, at the Newseum in Washington as part of the commemoration of the 40th Anniversary of the Apollo 11 moon landing. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Charles Bolden, left, welcomes Carol Armstrong, widow of Apollo 11 commander, Neil Armstrong, Apollo 11 astronauts Michael Collins and Buzz Aldrin, right, to NASA Headquarters in Washington on Tuesday, July 22, 2014, during the 45th anniversary week of the Apollo 11 lunar landing. Photo Credit: (NASA/Joel Kowsky)

On the eve of the fortieth anniversary of Apollo 11's first human landing on the Moon, Apollo 11 crew members, Buzz Aldrin, left, Michael Collins, 2nd from left, Neil Armstrong and NASA Mission Control creator and former NASA Johnson Space Center director Chris Kraft, right, gathered at the National Air and Space Museum in Washington, Sunday, July 19, 2009. The four were speakers at the Museum's 2009 John H. Glenn lecture in space history. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 Astronauts, from left, Michael Collins, Neil Armstrong, and Buzz Aldrin stand in recognition of Astronaut John Glenn during the U.S House of Representatives Committee on Science and Technology tribute to the Apollo 11 Astronauts at the Cannon House Office Building on Capitol Hill, Tuesday, July 21, 2009 in Washington. The committee presented the three Apollo 11 astronauts with a framed copy of House Resolution 607 honoring their achievement, and announced passage of legislation awarding them and John Glenn the Congressional Gold Medal. Photo Credit: (NASA/Bill Ingalls)

Former Apolo 11 astronaut Buzz Aldrin, left, Emil de Cou, and Ted Kennedy III, right, bow at the end of a program commemorating Human Spaceflight and the Kennedy Legacy, Wednesday, May 25, 2011, in the concert hall at the John F. Kennedy Center for the Performing Arts in Washington. The event marked the 50th Anniversary of President John F. Kennedy's Special Message to the Congress on Urgent National Needs in which he stated "landing a man on the moon and returning him safely to earth". Photo Credit: (NASA/Paul E. Alers)

Former Apolo 11 astronaut Buzz Aldrin, right, passes the baton to second guest conductor Ted Kennedy III as conductor Emil de Cou looks on while the Space Philharmonic plays on during a program commemorating Human Spaceflight and the Kennedy Legacy, Wednesday, May 25, 2011, in the concert hall at the John F. Kennedy Center for the Performing Arts in Washington. The event marked the 50th Anniversary of President John F. Kennedy's Special Message to the Congress on Urgent National Needs in which he stated "landing a man on the moon and returning him safely to earth". Photo Credit: (NASA/Paul E. Alers)

Apollo 11 Astronauts, from left, Michael Collins, Neil Armstrong, Buzz Aldrin and NASA Administrator Charles Bolden attend the U.S House of Representatives Committee on Science and Technology tribute to the Apollo 11 Astronauts at the Cannon House Office Building on Capitol Hill, Tuesday, July 21, 2009 in Washington. The committee presented the three Apollo 11 astronauts with a framed copy of House Resolution 607 honoring their achievement, and announced passage of legislation awarding them and John Glenn the Congressional Gold Medal. Photo Credit: (NASA/Bill Ingalls)

President Donald Trump, center, signs an Executive Order to reestablish the National Space Council, alongside members of the Congress, National Aeronautics and Space Administration, and Commercial Space Companies in the Roosevelt room of the White House in Washington, Friday, June 30, 2017. Vice President Mike Pence, also in attendance, will chair the council. Also pictured are retired NASA astronaut David Wolf, left, NASA Astronaut Alvin Drew, second from right, and retired NASA astronaut Buzz Aldrin, right. Photo Credit: (NASA/Aubrey Gemignani)

Veteran journalist Nick Clooney, seated left, moderated a panel discussion with Apollo 11 astronaut Buzz Aldrin, far right, Charlie Duke of Apollo 16, John Grunsfeld, of the recent Hubble mission, and Goddard Space Flight Center deputy director Laurie Leshin, Monday, July 20, 2009, at the Newseum in Washington as part of the commemoration of the 40th Anniversary of the Apollo 11 moon landing. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama meets with Apollo 11 astronauts Michael Collins, seated left, Buzz Aldrin, center, Carol Armstrong, widow of Apollo 11 commander, Neil Armstrong, and NASA Administrator Charles Bolden, Tuesday, July 22, 2014, in the Oval Office of the White House in Washington, during the 45th anniversary week of the Apollo 11 lunar landing. Photo Credit: (NASA/Bill Ingalls)

Veteran journalist Nick Clooney, seated left, moderated a panel discussion with Apollo 11 astronaut Buzz Aldrin, far right, Charlie Duke of Apollo 16, John Grunsfeld, of the recent Hubble mission, and Goddard Space Flight Center deputy director Laurie Leshin, Monday, July 20, 2009, at the Newseum in Washington as part of the commemoration of the 40th Anniversary of the Apollo 11 moon landing. Photo Credit: (NASA/Bill Ingalls)

Veteran journalist Nick Clooney, seated left, moderated a panel discussion with Apollo 11 astronaut Buzz Aldrin, far right, Charlie Duke of Apollo 16, John Grunsfeld, of the recent Hubble mission, and Goddard Space Flight Center deputy director Laurie Leshin, Monday, July 20, 2009, at the Newseum in Washington as part of the commemoration of the 40th Anniversary of the Apollo 11 moon landing. Photo Credit: (NASA/Bill Ingalls)

President Donald Trump, center, speaks before signing an Executive Order to reestablish the National Space Council, alongside members of the Congress, National Aeronautics and Space Administration, and Commercial Space Companies in the Roosevelt room of the White House in Washington, Friday, June 30, 2017. Vice President Mike Pence, second from left, will chair the council. Also pictured are, NASA astronaut Alvin Drew, left, and retired NASA Astronaut Buzz Aldrin, right. Photo Credit: (NASA/Aubrey Gemignani)

President Barack Obama, left, exits of Air Force One with, from left, Representative US Representative Suzanne M. Kosmas (D - FL), U.S Senator Bill Nelson (D-FL), NASA Administrator Charles Bolden, and Apollo 11 Astronaut Buzz Aldrin after landing at the NASA Kennedy Space Center in Cape Canaveral, Fla. on Thursday, April 15, 2010. Obama visited Kennedy to deliver remarks on the bold new course the administration is charting to maintain U.S. leadership in human space flight. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 Astronauts, from left, Michael Collins, Neil Armstrong, Buzz Aldrin and NASA Administrator Charles Bolden attend the U.S House of Representatives Committee on Science and Technology tribute to the Apollo 11 Astronauts at the Cannon House Office Building on Capitol Hill, Tuesday, July 21, 2009 in Washington. The Committee presented the three Apollo 11 astronauts with a framed copy of House Resolution 607 honoring their achievement, and announced passage of legislation awarding them and John Glenn the Congressional Gold Medal. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Doug Wheelock, left, Rick Armstrong, son of Apollo 11 astronaut Neil Armstrong, second from left, Apollo 11 astronaut Buzz Aldrin, second from right, and John Logsdon, Apollo historian and Professor Emeritus at George Washington University, right, are seen during a panel discussion during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Doug Wheelock, left, Rick Armstrong, son of Apollo 11 astronaut Neil Armstrong, second from left, Apollo 11 astronaut Buzz Aldrin, second from right, and John Logsdon, Apollo historian and Professor Emeritus at George Washington University, right, are seen during a panel discussion during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

Seishiro Kibee on behalf of the International Astronautical Federation Awards Committee, left, NASA Administrator Jim Bridenstine, Luke Newell, grandson of Apollo 11 command module pilot Michael Collins, Mark Armstrong, son of Apollo 11 commander Neil Armstrong, and Apollo 11 lunar module pilot Buzz Aldrin, and Jean-Yves Le Gall, President of International Astronautical Federation (IAF), right, pose for a picture after the 2019 World Space Award was presented to the Apollo 11 crew during the opening ceremony of the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

President Donald Trump, center, speaks to the crowd before signing an Executive Order to reestablish the National Space Council, alongside members of the Congress, National Aeronautics and Space Administration, and Commercial Space Companies in the Roosevelt room of the White House in Washington, Friday, June 30, 2017. Vice President Mike Pence, also in attendance, will chair the council. Also pictured are retired NASA astronaut David Wolf, left, NASA Astronaut Alvin Drew, second from right, and retired NASA astronaut Buzz Aldrin, right. Photo Credit: (NASA/Aubrey Gemignani)

Seishiro Kibee on behalf of the International Astronautical Federation Awards Committee, left, NASA Administrator Jim Bridenstine, Luke Newell, grandson of Apollo 11 command module pilot Michael Collins, Mark Armstrong, son of Apollo 11 commander Neil Armstrong, and Apollo 11 lunar module pilot Buzz Aldrin, and Jean-Yves Le Gall, President of International Astronautical Federation (IAF), right, pose for a picture after the 2019 World Space Award was presented to the Apollo 11 crew during the opening ceremony of the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Doug Wheelock, left, Rick Armstrong, son of Apollo 11 astronaut Neil Armstrong, second from left, Apollo 11 astronaut Buzz Aldrin, second from right, and John Logsdon, Apollo historian and Professor Emeritus at George Washington University, right, are seen during a panel discussion during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

From left, NASA Administrator Charles Bolden, Rice University Electrical and Engineering Student Max Paul, Former Maryland Lieutenant Governor and niece of President John F. Kennedy, Kathleen Kennedy Townsend, Apollo 11 Astronauts, Neil Armstrong, Buzz Aldrin and Michael Collins all pose for a photograph in front of the NASA Ambassador of Exploration Award given posthumously to President John F. Kennedy and accepted on behalf of the Kennedy family by Townsend at the Apollo 40th anniversary celebration held at the National Air and Space Museum, Monday, July 20, 2009 in Washington. The award will be on permanent display at Rice University at the request of the Kennedy family. Photo Credit: (NASA/Carla Cioffi)

A member of the audience takes a picture of NASA astronaut Doug Wheelock, Rick Armstrong, son of Apollo 11 astronaut Neil Armstrong, Apollo 11 astronaut Buzz Aldrin, and John Logsdon, Apollo historian and Professor Emeritus at George Washington University, on stage during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

1996 'STELLAR' program commencement activities. Special guest Astronaut Buzz Aldrin drops by to tour and chat. Aldrin was attending his book signing at US Space Camp earlier in the day.

1996 'STELLAR' program commencement with special guest Astronaut Buzz Aldrin drops by to tour and chat. Aldrin was attending his book signing at US Space Camp earlier in the day.

Yuri's Night 2009 held at the California Acaemy of Sciences in San Francisco, California Right is Apollo 11 Astronaut Buzz Aldrin.

S63-20056 (1963) --- Astronaut Edwin E. "Buzz" Aldrin, Jr. in civilian clothes.

Yuri's Night 2009 held at the California Acaemy of Sciences in San Francisco, California Right is Apollo 11 Astronaut Buzz Aldrin.

Yuri's Night 2009 held at the California Acaemy of Sciences in San Francisco, California Right is Apollo 11 Astronaut Buzz Aldrin.

Yuri's Night 2009 held at the California Acaemy of Sciences in San Francisco, California Right is Apollo 11 Astronaut Buzz Aldrin.

Yuri's Night 2009 held at the California Acaemy of Sciences in San Francisco, California Right is Apollo 11 Astronaut Buzz Aldrin.

Yuri's Night 2009 held at the California Acaemy of Sciences in San Francisco, California Right is Apollo 11 Astronaut Buzz Aldrin.

Yuri's Night 2009 held at the California Acaemy of Sciences in San Francisco, California Right is Apollo 11 Astronaut Buzz Aldrin.

S64-31484 (1964) --- Astronaut Edwin E. "Buzz" Aldrin Jr. Photo credit: NASA

Yuri's Night 2009 held at the California Acaemy of Sciences in San Francisco, California Right is Apollo 11 Astronaut Buzz Aldrin seated in audience.

Yuri's Night 2009 held at the California Acaemy of Sciences in San Francisco, California Ames Yvonne Pendleton, Gary Martin and Apollo 11 Astronaut Buzz Aldrin.

Apollo 11 Astronaut Buzz Aldrin has his footprints casted during the dedication ceremony of the rocket fountain at Building 4200 at Marshall Space Flight Center. The casts of Aldrin's footprints will be placed in the newly constructed Von Braun courtyard representing the accomplishments of the Apollo 11 lunar landing.

Andy Aldrin, son of Apollo 11 astronaut Buzz Aldrin, introduces Apollo 11 astronaut Michael Collins, during the Apollo 50th Gala, presented by Northrop Grumman. The event was held inside the Apollo/Saturn V Center at the Kennedy Space Center Visitor Complex in Florida on July 16, 2019.

The crowning achievement for the Saturn V rocket came when it launched Apollo 11 astronauts, Neil Armstrong, Edwin (Buzz) Aldrin, and Michael Collins, to the Moon in July 1969. In this photograph, astronaut Aldrin takes his first step onto the surface of the Moon.

Apollo astronauts from left, Walt Cunningham (Apollo 17), James Lovell (Apollo 8 Apollo 13), David Scott (Apollo 9 Apollo 15), Buzz Aldrin (Apollo 11), Charles Duke (Apollo 16), Thomas Stafford (Apollo 10) and Eugene Cernan (Apollo 17) are seen during the 40th anniversary of the Apollo 11 mission and the walk on the moon press conference, Monday, July 20, 2009, at NASA Headquarters in Washington. Photo Credit: (NASA/Paul E. Alers)

Apollo astronauts from left, Walt Cunningham (Apollo 17), James Lovell (Apollo 8 Apollo 13), David Scott (Apollo 9 Apollo 15), Buzz Aldrin (Apollo 11), Charles Duke (Apollo 16), Thomas Stafford (Apollo 10) and Eugene Cernan (Apollo 17) are seen during the 40th anniversary of the Apollo 11 mission and the walk on the moon press conference, Monday, July 20, 2009, at NASA Headquarters in Washington. Photo Credit: (NASA/Paul E. Alers)

Apollo astronauts from left, Walt Cunningham (Apollo 17), James Lovell (Apollo 8 Apollo 13), David Scott (Apollo 9 Apollo 15), Buzz Aldrin (Apollo 11), Charles Duke (Apollo 16), Thomas Stafford (Apollo 10) and Eugene Cernan (Apollo 17) are seen during the 40th anniversary of the Apollo 11 mission and the walk on the moon press conference, Monday, July 20, 2009, at NASA Headquarters in Washington. Photo Credit: (NASA/Paul E. Alers)

CAPE KENNEDY, Fla. -- At Cape Kennedy Air Force Station in Florida, Gemini 12 pilot Edwin E. Buzz Aldrin Jr., seated in the spacecraft, practice stowing cameras and other equipment he and command pilot James A. Lovell will take along on their upcoming four-day Earth orbital mission. Lovell and Aldrin examined the equipment in the "White Room" atop Launch Complex 19. During Gemini 12, Lovell and Aldrin plan to rendezvous and dock with an Agena target satellite and Aldrin will perform two spacewalks. Photo Credit: NASA

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, NASA officials and Apollo astronauts visiting Launch Pad 39B with their families and friends preserve the moment with a group portrait. The group was at Kennedy for a ceremony renaming the Operations and Checkout Building for Apollo 11 astronaut Neil Armstrong, the first person to set foot on the moon. From left are NASA Administrator Charles Bolden, Apollo astronaut Jim Lovell, Buzz Aldrin's grandson Jeffrey Schuss, Jeffrey's wife April Schuss, Neil's former wife Janet Armstrong, Apollo 11 moonwalker Buzz Aldrin, Buzz's son-in-law Bruce Hanifan, Buzz's daughter Jan Aldrin, Buzz's son Andy Aldrin, Apollo 11 command module pilot Mike Collins, and Center Director Bob Cabana. The pad is being modified to support the agency's new Orion spacecraft which will lift off atop the Space Launch System rocket. Orion is designed to take humans farther than they’ve ever gone before, serving as the exploration vehicle that will carry astronauts to deep space and sustain the crew during travel to destinations such as an asteroid or Mars. The visit of the former astronauts was part of NASA's 45th anniversary celebration of the Apollo 11 moon landing. As the world watched, Neil Armstrong and Neil Aldrin landed in the moon's Sea of Tranquility aboard the lunar module Eagle on July 20, 1969. Meanwhile, crewmate Michael Collins orbited above in the command module Columbia. For more, visit http://www.nasa.gov/press/2014/july/nasa-honors-historic-first-moon-landing-eyes-first-mars-mission. Photo credit: NASA/Kim Shiflett

Vice President Mike Pence, center, celebrates the 50th anniversary of the Apollo 11 Moon landing during a visit to Kennedy Space Center’s Launch Complex 39A on July 20, 2019. Neil Armstrong, Buzz Aldrin and Michael Collins launched from Pad 39A aboard a Saturn V rocket on July 16, 1969. Four days later, Armstrong and Aldrin landed the Apollo Lunar Module Eagle on the Moon, becoming the first two humans to walk on the lunar surface. Pence recognized the extraordinary achievements of the Apollo 11 team, while looking forward to NASA’s plans to return to the Moon and on to Mars. At left is Apollo 11 Lunar Module Pilot Buzz Aldrin. At right is Rick Armstrong, Apollo 11 Commander Neil Armstrong's son.

Vice President Mike Pence, center, celebrates the 50th anniversary of the Apollo 11 Moon landing during a visit to Kennedy Space Center’s Launch Complex 39A on July 20, 2019. Neil Armstrong, Buzz Aldrin and Michael Collins launched from Pad 39A aboard a Saturn V rocket on July 16, 1969. Four days later, Armstrong and Aldrin landed the Apollo Lunar Module Eagle on the Moon, becoming the first two humans to walk on the lunar surface. Pence recognized the extraordinary achievements of the Apollo 11 team, while looking forward to NASA’s plans to return to the Moon and on to Mars. At left is Apollo 11 Lunar Module Pilot Buzz Aldrin. At right is Rick Armstrong, son of Apollo 11 Commander Neil Armstrong.

Vice President Mike Pence, center, celebrates the 50th anniversary of the Apollo 11 Moon landing during a visit to Kennedy Space Center’s Launch Complex 39A on July 20, 2019. Neil Armstrong, Buzz Aldrin and Michael Collins launched from Pad 39A aboard a Saturn V rocket on July 16, 1969. Four days later, Armstrong and Aldrin landed the Apollo Lunar Module Eagle on the Moon, becoming the first two humans to walk on the lunar surface. Pence recognized the extraordinary achievements of the Apollo 11 team, while looking forward to NASA’s plans to return to the Moon and on to Mars. At left is Apollo 11 Lunar Module Pilot Buzz Aldrin. At right is Rick Armstrong, Apollo 11 Commander Neil Armstrong's son.

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, NASA officials and Apollo astronauts visiting Launch Pad 39B with their families and friends preserve the moment with a group portrait. The group was at Kennedy for a ceremony renaming the Operations and Checkout Building for Apollo 11 astronaut Neil Armstrong, the first person to set foot on the moon. From left are NASA Administrator Charles Bolden, Neil's granddaughter Lily Armstrong, Neil's grandson Bryce Armstrong, Neil's son Mark Armstrong, Neil's former wife Janet Armstrong, Neil's son Rick Armstrong, Apollo 11 moonwalker Buzz Aldrin, Buzz's friend Judy Rice, Apollo astronaut Jim Lovell, Mike Collins' daughter Ann Starr, Apollo 11 command module pilot Mike Collins, Buzz's grandson Jeffrey Schuss, Jeffrey's wife April Schuss, Buzz's son-in-law Bruce Hanifan, Buzz's daughter Jan Aldrin, Buzz's son Andy Aldrin, and Center Director Bob Cabana. The pad is being modified to support the agency's new Orion spacecraft which will lift off atop the Space Launch System rocket. Orion is designed to take humans farther than they’ve ever gone before, serving as the exploration vehicle that will carry astronauts to deep space and sustain the crew during travel to destinations such as an asteroid or Mars. The visit of the former astronauts was part of NASA's 45th anniversary celebration of the Apollo 11 moon landing. As the world watched, Neil Armstrong and Neil Aldrin landed in the moon's Sea of Tranquility aboard the lunar module Eagle on July 20, 1969. Meanwhile, crewmate Michael Collins orbited above in the command module Columbia. For more, visit http://www.nasa.gov/press/2014/july/nasa-honors-historic-first-moon-landing-eyes-first-mars-mission. Photo credit: NASA/Kim Shiflett

EDWARDS AIR FORCE BASE, Calif. – Disney’s space ranger Buzz Lightyear returned from space on Sept. 11 aboard space shuttle Discovery’s STS-128 mission after 15 months aboard the International Space Station. His time on the orbiting laboratory will be celebrated in a ticker-tape parade together with his space station crewmates and former Apollo 11 moonwalker Buzz Aldrin on Oct. 2 at Walt Disney World in Florida.

CAPE CANAVERAL, Fla. – At the Apollo/Saturn V Center at NASA's Kennedy Space Center in Florida, Apollo astronaut Buzz Aldrin comments on his experiences as one of the first moon walkers, on the Apollo 11 mission in July 1969. At right is astronaut Walt Cunningham. Aldrin, Cunningham and other Apollo astronauts participated in NASA's 40th Anniversary of Apollo Celebration. Photo credit: NASA/Kim Shiflett

Michael Collins; right; Apollo 11 astronaut; presents the Innovation Award to David Thompson; left; founder; president and CEO of Orbital Sciences Corp (later known as Orbital ATK); during the Apollo 50th Gala on July 16; 2019. The event; presented by Northrop Grumman; was held inside the Apollo/Saturn V Center at the Kennedy Space Center Visitor Comples in Florida. In the center at the podium is Andy Aldrin; son of Apollo 11 astronaut Buzz Aldrin.

CAPE KENNEDY, Fla. -- At the Cape Kennedy Air Force Station skid strip, Dr. Kurt H. Debus, director of the Kennedy Space Center, greets returning Gemini 12 astronauts James A. Lovell and Edwin E. Buzz Aldrin Jr. following their four-day Earth orbital mission. Photo Credit: NASA

CAPE KENNEDY, Fla. -- At Cape Kennedy Air Force Station in Florida, the crew for Gemini 12 arrives at Launch Complex 19. Command pilot James A. Lovell is followed by pilot Edwin E. Buzz Aldrin Jr. The signs on their backs note that this mission is the final flight of the Gemini Program. Photo Credit: NASA

A visitor explores the exhibit at the Apollo 11 50th Anniversary celebration on the National Mall, Thursday, July 18, 2019 in Washington. Apollo 11 was the first mission to land astronauts on the Moon and launched on July 16, 1969 with astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin. Photo Credit: (NASA/Aubrey Gemignani)

Astronaut Buzz Aldrin listens to remarks during Kennedy Space Center's Day of Remembrance ceremony. Held this year in the Center for Space Education at the Kennedy Space Center Visitor Complex in Florida, the annual event honors the contributions of all astronauts who lost their lives in the quest for space exploration.

Visitors examine meteorites at a NASA exhibit at the Apollo 11 50th Anniversary celebration on the National Mall, Thursday, July 18, 2019 in Washington. Apollo 11 was the first mission to land astronauts on the Moon and launched on July 16, 1969 with astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin. Photo Credit: (NASA/Aubrey Gemignani)

Visitors explore the LEGO exhibit at the Apollo 11 50th Anniversary celebration on the National Mall, Thursday, July 18, 2019 in Washington. Apollo 11 was the first mission to land astronauts on the Moon and launched on July 16, 1969 with astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin. Photo Credit: (NASA/Aubrey Gemignani)

A visitor explores the Journey to Tomorrow exhibit at the Apollo 11 50th Anniversary celebration on the National Mall, Thursday, July 18, 2019 in Washington. Apollo 11 was the first mission to land astronauts on the Moon and launched on July 16, 1969 with astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin. Photo Credit: (NASA/Aubrey Gemignani)

A visitor explores the exhibit at the Apollo 11 50th Anniversary celebration on the National Mall, Thursday, July 18, 2019 in Washington. Apollo 11 was the first mission to land astronauts on the Moon and launched on July 16, 1969 with astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin. Photo Credit: (NASA/Aubrey Gemignani)

A visitor explores the Journey to Tomorrow exhibit at the Apollo 11 50th Anniversary celebration on the National Mall, Thursday, July 18, 2019 in Washington. Apollo 11 was the first mission to land astronauts on the Moon and launched on July 16, 1969 with astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin. Photo Credit: (NASA/Aubrey Gemignani)