CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center Visitor Complex in Florida, Kimberly Williams Land, emcee and outreach lead judge, talks to students from the Islamic University of Technology in Bangladesh after the opening ceremony of NASA’s Fourth Annual Robotic Mining Competition. The competition will take place through May 24. The mining competition is coordinated by Kennedy Space Center’s Education Office for the agency’s Exploration Systems Mission Directorate. Undergraduate and graduate students from 50 universities and colleges in the U.S. and eight countries around the world will use their remote-controlled robots to maneuver and dig in a supersized sandbox filled with a crushed material called regolith that has characteristics similar to asteroids, moons of Mars and Mars itself. Photo credit: NASA_Lorne Mathre

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)

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)