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)

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CAPE CANAVERAL, Fla. -- An education specialist from Kennedy Space Center prepares to demonstrate the principles of a vacuum chamber to the nationwide attendees of the Tom Joyner Family Reunion. The demonstration was held in front of NASA’s Journey to Tomorrow trailer at reunion headquarters at the Gaylord Palms Resort and Convention Center in Kissimmee, Fla. The reunion was hosted by nationally syndicated radio personality Tom Joyner during the extended Labor Day weekend Sept. 1-4. Besides offering attendees the opportunity to visit tourist attractions in the Orlando area, the reunion gave NASA an avenue to tout the benefits of math and scientific learning, as well as the many educational opportunities offered by the space agency. For more information on NASA's education initiatives, visit http://www.nasa.gov/education. Photo credit: NASA/Frankie Martin

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CAPE CANAVERAL, Fla. -- NASA astronauts Mike Foreman (seated, left) and Greg Johnson (seated, right) sign autographs for the nationwide attendees of the Tom Joyner Family Reunion. They are seated in front of NASA’s Journey to Tomorrow trailer at reunion headquarters at the Gaylord Palms Resort and Convention Center in Kissimmee, Fla. The reunion was hosted by nationally syndicated radio personality Tom Joyner during the extended Labor Day weekend Sept. 1-4. Besides offering attendees the opportunity to visit tourist attractions in the Orlando area, the reunion gave NASA education specialists an avenue to tout the benefits of math and scientific learning, as well as the many educational opportunities offered by the space agency. For more information on NASA's education initiatives, visit http://www.nasa.gov/education. Photo credit: NASA/Frankie Martin

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CAPE CANAVERAL, Fla. -- NASA astronauts Mike Foreman (seated, left) and Greg Johnson (seated, right) enjoy the quiet before the storm as they prepare to sign autographs for the nationwide attendees of the Tom Joyner Family Reunion. They are seated in front of NASA’s Journey to Tomorrow trailer at reunion headquarters at the Gaylord Palms Resort and Convention Center in Kissimmee, Fla. The reunion was hosted by nationally syndicated radio personality Tom Joyner during the extended Labor Day weekend Sept. 1-4. Besides offering attendees the opportunity to visit tourist attractions in the Orlando area, the reunion gave NASA education specialists an avenue to tout the benefits of math and scientific learning, as well as the many educational opportunities offered by the space agency. For more information on NASA's education initiatives, visit http://www.nasa.gov/education. Photo credit: NASA/Frankie Martin

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CAPE CANAVERAL, Fla. -- NASA astronauts Mike Foreman (seated, left) and Leland Melvin (seated, right) sign autographs for the nationwide attendees of the Tom Joyner Family Reunion. Melvin also is NASA's associate administrator for education. They are seated in front of NASA’s Journey to Tomorrow trailer at reunion headquarters at the Gaylord Palms Resort and Convention Center in Kissimmee, Fla. The reunion was hosted by nationally syndicated radio personality Tom Joyner during the extended Labor Day weekend Sept. 1-4. Besides offering attendees the opportunity to visit tourist attractions in the Orlando area, the reunion gave NASA education specialists an avenue to tout the benefits of math and scientific learning, as well as the many educational opportunities offered by the space agency. For more information on NASA's education initiatives, visit http://www.nasa.gov/education. Photo credit: NASA/Frankie Martin