Actor John Cho in interviewed by NASA's Social Video Producer, Brittany Brown, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts ahead of the "National Symphony Orchestra Pops: Space, the Next Frontier," celebrating NASA's 60th Anniversary in Washington DC. The event featured music inspired by space including artists Will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Michael Giacchino, Star Trek composer, is interviewed by NASA's Social Video Producer Brittany Brown, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts ahead of the "National Symphony Orchestra Pops: Space, the Next Frontier," celebrating NASA's 60th Anniversary in Washington DC. The event featured music inspired by space including artists Will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Musician Grace Potter is interviewed by NASA TV, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts ahead of the "National Symphony Orchestra Pops: Space, the Next Frontier," celebrating NASA's 60th Anniversary in Washington DC. The event featured music inspired by space including artists Will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Musician Grace Potter is interviewed by NASA TV, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts ahead of the "National Symphony Orchestra Pops: Space, the Next Frontier," celebrating NASA's 60th Anniversary in Washington DC. The event featured music inspired by space including artists Will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

NASA's Social Video Producer, Brittany Brown interviews Nick Sagan Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts ahead of the "National Symphony Orchestra Pops: Space, the Next Frontier," celebrating NASA's 60th Anniversary in Washington DC. The event featured music inspired by space including artists Will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Will.i.am is interviewed by NASA TV, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts ahead of the "National Symphony Orchestra Pops: Space, the Next Frontier," celebrating NASA's 60th Anniversary in Washington DC. The event featured music inspired by space including artists Will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Josh Eppard, drummer for the progressive rock band, Coheed and Cambria is interviewed by NASA TV, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts ahead of the "National Symphony Orchestra Pops: Space, the Next Frontier," celebrating NASA's 60th Anniversary in Washington DC. The event featured music inspired by space including artists Will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Actor John Cho recites a poem during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Students provide backup vocals during a performance of Will.i.am's "Reach for the Stars" at the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Coheed and Cambria performs at the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Will.i.am's "Reach for the Stars" is performed while he conducts the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Conductor Emil de Cou leads the final performance of the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

National Symphony Orchestra members are seen performing during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Singer-songwriter Grace Potter performs at the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Conductor Emil de Cou leads the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Composer Michael Giacchino speaks during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Will.i.am speaks before conducting the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Conductor Emil de Cou leads the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Star Trek composer Michael Giacchino conducts the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

NASA's Associate Administrator for the Science Mission Directorate, Thomas Zurbuchen, is seen in a video message during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Will.i.am's is seen just after he conducted the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Conductor Emil de Cou and the National Symphony Orchestra stands at the start of the second half of "Space, the Next Frontier" celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Conductor Emil de Cou leads the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Conductor Emil de Cou speaks after leading the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Conductor Emil de Cou leads the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Conductor Emil de Cou speaks after leading the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Conductor Emil de Cou leads the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronauts Drew Feustel, left, and Scott Tingle, perform a song by video at the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

A NASA logo cake is cut by Administrator Bridenstine at the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Star Trek composer Michael Giacchino does the Vulcan salute after conducting the National Symphony Orchestra during the "Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

The Apollo 50th Anniversary logo is unveiled during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine speaks during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Carl Sagan's son, Nick Sagan, left, speaks at the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronauts Drew Feustel, left, and Scott Tingle, are seen during a video message to the audience of the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

A NASA logo cake is brought onstage during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine speaks during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine, left, speaks during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

A NASA logo cake is brought onstage during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

All artists are seen at the conclusion of the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)

Natasha Bedingfield performs during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Herbie Hancock performs during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Herbie Hancock speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Meredith Vieira speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

LeVar Burton speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Meredith Vieira speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Pharrell gestures to the crowd during his performance of "Freedom" at the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

American composer Michael Giacchino's piece titled, "Advent" is performed during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Pharrell gestures to the crowd after performing "Freedom" at the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Author Charles Fishman speaks to maker and host of Savage Builds, Adam Savage, during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Son of Apollo 11 astronaut Neil Armstrong, Mark Armstrong, right, and his daughter, sing a song he wrote about his father, "Flight of Fancy," during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Emil de Cou conducts the National Symphony Orchestra to a backdrop of Apollo 11 footage during the "NSO Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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 new music video for David Bowie's "Space Oddity" is premiered during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Maker and host of Savage Builds, Adam Savage, speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

American composer Michael Giacchino speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Former Apollo 11 astronaut Michael Collins speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Emil de Cou conducts the National Symphony Orchestra to a backdrop of Apollo 11 images during the "NSO Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Former Apollo 11 astronaut Michael Collins speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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 Associate Administrator for Communications, Bettina Inclan speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Former Apollo 11 astronaut Michael Collins speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Maker and host of Savage Builds, Adam Savage, dressed in a spacesuit, speaks to the audience after planting a U.S. flag on the stage during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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 Associate Administrator for Communications, Bettina Inclan speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

American composer Michael Giacchino, left, and National Symphony Orchestra (NSO) conductor, Emil de Cou, wave to the audience during the "NSO Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Son of Apollo 11 astronaut Neil Armstrong, Mark Armstrong, speaks during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Maker and host of Savage Builds, Adam Savage, dressed in a spacesuit, plants a U.S. flag on the stage during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Son of Apollo 11 astronaut Neil Armstrong, Mark Armstrong, right, and his daughter, sing a song he wrote about his father, "Flight of Fancy," during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" a program including musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Damian Kulash of OK Go performs "All Is Not Lost" during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

Miles O'Brien of PBS serves as master of ceremonies during a National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

All members of the program sing "America, the Beautiful" at the conclusion of the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" which included musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Meredith Vieira closes out the program by reading Walter Cronkite's speech during the "National Symphony Orchestra Pops, Apollo 11: A 50th Anniversary, One Small Step, One Giant Leap" which included musical acts, speakers, and images and video related to space, on Saturday, July 20, 2019 at the John F. Kennedy Center for the Performing Arts in Washington. NASA and the country 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)

Singer Patti Austin performs Tena Clark's "Way Up There" during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

Singer Patti Austin performs Tena Clark's "Way Up There" during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

The Maryland Classic Youth Orchestras performs "Clair du Lune" with Guest Conductor Emil de Cou during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

Ted Kennedy III guest conducts the Space Philharmonic 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)

Emil de Cou conducts the Space Philharmonic during a program entitled Human Spaceflight: 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)

Actress June Lockhart livens up the audience after donning a NASA cap during a program entitled Human Spaceflight: 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)

Musician Herbie Hancock bows to the audience after perfrorming 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)

Astronauts Scott Altman, left, and Leland Melvin speak of their fallen comrades 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)

Emil de Cou conducts the Space Philharmonic during a program entitled Human Spaceflight: 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)

Deputy Administrator Lori Garver delivers remarks as Emil de Cou, right, 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)

Musician Herbie Hancock plays a piece on the piano 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)

Actress June Lockhart speaks at a program entitled Human Spaceflight: 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)

Astronauts Scott Altman, left, and Leland Melvin speak of their fallen comrades as Emil de Cou, right, 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)

Musician Herbie Hancock delivers remarks as members of the Space Philharmonic look 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)

Actress June Lockhart delivers remarks during a program entitled Human Spaceflight: 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)

Jean Kennedy Smith, sister of John F. Kennedy, delivers remarks during a program entitled Human Spaceflight: The Kennedy Legacy as Emil de Cou, conductor of the Space Philharmonic, right, looks on, 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)

Actress Nichelle Nichols, best known for her role as communications officer Lieutenant Uhura in the series "Star Trek", bows as Emil de Cou, right, applauds, 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)

Actress Nichelle Nichols, best known for her role as communications officer Lieutenant Uhura in the series "Star Trek", sings as she is escorted on stage, 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)

Actress Nichelle Nichols, best known for her role as communications officer Lieutenant Uhura in the series "Star Trek", speaks as Emil de Cou, right, looks on, 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)

Tennis legend and champion for change Billie Jean King talks of inspiration role models during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

Tennis legend and champion for change Billie Jean King talks of inspiration role models during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

Journalist and former First Lady of California Maria Shriver talks prior to reading the poem "The Summer Day" by Mary Oliver during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

Journalist and former First Lady of California Maria Shriver reads the poem "The Summer Day" by Mary Oliver during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

U.S. Senator Barbara Mikulski, D-Md., shares how astronaut Sally Ride changed STEM education and policy during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

Co-Founder of Sally Ride Science Karen Flammer talks about educational outreach programs for NASA, ISS EarthKAM, and Grail MoonKAM during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

U.S. Senator Barbara Mikulski, D-Md., shares how astronaut Sally Ride changed STEM education and policy during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

Sen. Barbara Mikulski, D-Md., left, talks with Tam O'Shaughnessy, Sally Ride's life partner and chair, board of directors of Sally Ride Science, prior to the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. Photo Credit: (NASA/Bill Ingalls)

Student dancers from the North Carolina School of the Arts dance "Jordan" from Sweet Fields, Choreographed by Twayle Tharp, as the Centerville High School Chorus sings during the National Tribute to Sally Ride at the John F. Kennedy Center for the Performing Arts, Monday, May 20, 2013 in Washington. 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)

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)