
Dr. von Braun is carried aloft on the shoulders of Huntsville city officials during the Apollo 11 celebration in Huntsville, Alabama, on July 24, 1969. Huntsville, Alabama is the home of the Marshall Space Flight Center which developed the Saturn vehicles under the direction of Dr. von Braun. The Apollo 11 lifted off in July and made the first marned lunar landing on the Moon.

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)

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)

Visitors explore the Lockheed Martin 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/Connie Moore)

A visitor poses for a photo in the NASA spacesuit 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 LEGO astronaut is seen 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 reads about the RL10 engines 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/Connie Moore)

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/Connie Moore)

A Ready Jet Go performance is seen 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 learn about the SOFIA telescope 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/Connie Moore)

Visitors learn about rover tires at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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 learns about circuits at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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 view of 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/Connie Moore)

The Moon to Mars exhibit is seen 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/Connie Moore)

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 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 LEGO exhibit at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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 pose for a photo with Snoopy 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/Connie Moore)

The main stage at the Apollo 11 50th Anniversary celebration is seen 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 learn about rover tires 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/Connie Moore)

A small rover is driven over a visitor at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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 poses for a photo in the NASA spacesuit 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)

Dr. von Braun and his son were driven around the Courthouse Square during the Apollo 11 celebration at Huntsville, Alabama, on July 24, 1969. The city of Huntsville is the home the Marshall Space Flight Center which developed the Saturn vehicles under the direction of Dr. von Braun.

A visitor poses for a photo with NASA astronaut Randy Bresnik at the LEGO exhibit at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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)

NASA astronaut candidate Zena Cardman greets a visitor at the LEGO exhibit at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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)

Artist David Maldonado paints a pair of high top shoes with a space themed design at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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 large inflatable Space Launch System (SLS) rocket is seen 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/Connie Moore)

Artist David Maldonado paints a pair of high top shoes with a space themed design at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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)

Christyl Johnson, NASA Goddard deputy director for technology and research investments, is seen on stage during a performance 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/Connie Moore)

A small rover is driven over some visitors at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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)

NASA Social Media Specialist, Tahira Allen, interviews visitors to the Apollo 11 50th Anniversary celebration on the National Mall during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

A visitor explores the Ready Jet Go 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 help build pieces of a 20 ft. rocket at 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)

NASA astronaut Randy Bresnik speaks at the LEGO exhibit for a video at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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 catapults an Angry Bird 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 put a puzzle together 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)

Musicians perform during the Ready Jet Go segment 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 poses for a photo with an astronaut made of LEGOs at 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/Connie Moore)

A visitor high fives Ready Jet Go's Jet Propulsion 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/Connie Moore)

Visitors test out some space gloves at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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)

NASA astronaut Randy Bresnik, left, and NASA astronaut candidate, Zena Cardman, pose for a photo with the soon to be 20 ft. model of the Space Launch System (SLS) made out of LEGOs, at the Apollo 11 50th Anniversary celebration on the National Mall, Friday, July 19, 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)

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. Retired engineers Sonny Morea and Richard Hoover sit in the Polaris Lunar Rover replica.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. Huntsville Mayor Tommy Battle with the Polaris representative and representatives from the U.S. Space and Rocket Center

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. Marshall Center Director Jody Singer with retired engineer Alex McCool.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. The Polaris Lunar Rover replica leads the parade into the Huntsville Square

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. Marshall Center Director Jody Singer addresses the crowd.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. Retired NASA engineer Richard Hoover chats with attendees

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. Marshall Center Director Jody Singer addresses the crowd.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. Marshall Center Director Jody Singer addresses the crowd.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. MSFC Director Jody Singer and U.S. Space and Rocket Center Director Deborah Barnhart lead the parade into the Huntsville Square.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. Marshall Center Director Jody Singer sits in the Polaris Lunar Rover replica.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. Retired NASA engineer Sonny Morea sits in the Polaris Lunar Rover Replica

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. The Polaris Lunar Rover replica is being driven out of its trailer.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. The Polaris Lunar Rover development team poses with retired NASA personnel who also volunteer as docents at the U.S. Space and Rocket Center.

The City of Huntsville hosted a celebration of the Apollo 11 Moon landing with a street party on the downtown square with exhibits from the Marshall Space Flight Center and contributing contractors. The event was kicked off with remarks from Huntsville Mayor Tommy Battle, Marshall Space Flight Center's Director Jody Singer, and U.S. Space and Rocket Center's Director Deborah Barnhart with the Polaris replica of the Lunar Moon Buggy in the foreground. The Lunar Rover replica, followed by MSFC Director Jody Singer, USSRC Director Deborah Barnhart, and May Tommy Battle lead the parade to the Huntsville square.

S69-40023 (24 July 1969) --- Overall view of the Mission Operations Control Room (MOCR) in the Mission Control Center (MCC), Building 30, Manned Spacecraft Center (MSC), showing the flight controllers celebrating the successful conclusion of the Apollo 11 lunar landing mission.

S69-40022 (24 July 1969) --- Overall view of the Mission Operations Control Room (MOCR) in the Mission Control Center (MCC), Building 30, Manned Spacecraft Center (MSC), showing the flight controllers celebrating the successful conclusion of the Apollo 11 lunar landing mission.

Apollo 11 splashdown celebration in Huntsville, Alabama, on July 24, 1969. Huntsville Alabama is the home of the Marshall Space Flight Center which developed the Saturn vehicles under the direction of Dr. von Braun. The photo shows Dr. von Braun speaking to the crowd at the Madison County Courthouse as Mayor Joe Davis, Madison County Commissioner James Record and City Council President Ken Johnson look on.

S69-40024 (24 July 1969) --- NASA and Manned Spacecraft Center (MSC) officials join in with the flight controllers, in the Mission Operations Control Room (MOCR) in the Mission Control Center (MCC), in celebrating the successful conclusion of the Apollo 11 lunar landing mission. Identifiable in the picture, starting in foreground, are Dr. Robert R. Gilruth, MSC Director; George M. Low, Manager, Apollo Spacecraft Program, MSC; Dr. Christopher C. Kraft Jr., MSC Director of Flight Operation; U.S. Air Force Lt. Gen. Samuel C. Phillips (with glasses, looking downward), Apollo Program Director, Office of Manned Space Flight, NASA Headquarters; and Dr. George E. Mueller (with glasses, looking toward left), Associate Administrator, Office of Manned Space Flight, NASA Headquarters. Former astronaut John H. Glenn Jr. is standing behind Mr. Low.

NASA Viking 1 landing site is shown in this commemorative image from NASA Mars Odyssey spacecraft to celebrate the July 20, 1969 and 1976 anniversaries of NASA Apollo 11 and Viking 1 landings on the Moon and Mars, respectively.

Adam Savage, maker and host of Savage Builds, speaks during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator, Jim Bridenstine, speaks during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

Adam Savage, Maker and Host of Savage Builds, interviews NASA astronaut Randy Bresnik during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

NASA Public Affairs Officer for Heliophysics Karen Fox, interviews, Apollo 11 astronaut Mike Collins during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Apollo 10 astronaut General Thomas Stafford talks about his mission during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Adam Savage, maker and host of Savage Builds, left, introduces NASA Spacesuit Engineer, Lindsay Aitchison, center, and NASA astronaut Randy Bresnik, during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Randy Bresnik is interviewed during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Adam Savage, Maker and Host of Savage Builds, interviews NASA astronaut Randy Bresnik during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Randy Bresnik speaks during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

Apollo 10 astronaut General Thomas Stafford talks about his mission during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

NASA Public Affairs Officer for Heliophysics Karen Fox, left, interviews, Apollo 11 astronaut Mike Collins, and NASA astronaut candidate Zena Cardman during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

NASA Public Affairs Officer for Heliophysics Karen Fox, left, interviews, Apollo 11 astronaut Mike Collins, and NASA astronaut candidate Zena Cardman during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Adam Savage, maker and host of Savage Builds, speaks during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

NASA Public Affairs Officer for Heliophysics Karen Fox, left, interviews, Apollo 11 astronaut Mike Collins, and NASA astronaut candidate Zena Cardman during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Adam Savage, maker and host of Savage Builds, left, speaks with NASA Administrator Jim Bridenstine during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine, right, speaks with Adam Savage, maker and host of Savage Builds, during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

Apollo 11 astronaut Mike Collins talks about his mission during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine, right, speaks with Adam Savage, maker and host of Savage Builds, at the conclusion of “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

Apollo 10 astronaut General Thomas Stafford talks about his mission during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Apollo 11 astronaut Mike Collins leaves the stage after appearing on a live television program titled “NASA’s Giant Leaps: Past and Future," Friday, July 19, 2019 at the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

NASA Public Affairs Officer for Heliophysics Karen Fox, left, interviews, Apollo 11 astronaut Mike Collins, and NASA astronaut candidate Zena Cardman during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut candidate Zena Cardman is reflected in the glass as she talks with Apollo 11 astronaut Mike Collins during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Adam Savage, maker and host of Savage Builds, left, speaks with NASA Public Affairs Officer for Heliophysics, Karen Fox, just before “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

Apollo 11 astronaut Mike Collins talks about his mission during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Adam Savage, Maker and Host of Savage Builds, interviews NASA astronaut Randy Bresnik during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Adam Savage, Maker and Host of Savage Builds, interviews NASA astronaut Randy Bresnik during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

NASA Public Affairs Officer for Heliophysics Karen Fox interviews Apollo 10 astronaut General Thomas Stafford during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator, Jim Bridenstine, speaks during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)

NASA Public Affairs Officer for Heliophysics Karen Fox interviews Apollo 10 astronaut General Thomas Stafford during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 from the Smithsonian National Air and Space Museum in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Bill Ingalls)

Adam Savage, maker and host of Savage Builds, speaks during “NASA’s Giant Leaps: Past and Future," a live television program on Friday, July 19, 2019 on the National Mall in Washington. NASA and the world are recognizing the 50th anniversary of Apollo 11, in which astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin crewed the first mission to land astronauts on the Moon. Photo Credit: (NASA/Aubrey Gemignani)