NASA astronauts Joe Acaba, left, and Mark Vande Hei, right, present Walt Whitman Middle School Principal Craig Herring with a montage from their Expedition 54 mission, Thursday, June 14, 2018 in Alexandria, Va. Acaba and astronaut Mark Vande Hei answered questions from the audience and spoke about their experiences aboard the International Space Station for 168 days as part of Expedition 53 and 54. Photo Credit: (NASA/Joel Kowsky)

CAPE CANAVERAL, Fla. – Carol Craig, founder and chief executive officer of Craig Technologies. Her company operates the Aerospace and Defense Manufacturing Center in Cape Canaveral, Fla. In June of last year, NASA signed a partnership agreement with Craig Technologies to maintain an inventory of unique processing and manufacturing equipment for future mission support at the agency's Kennedy Space Center. The Cape Canaveral, Fla., facility, formerly known as the NASA Shuttle Logistics Depot NSLD, is now the Aerospace and Defense Manufacturing Center ADMC. Photo credit: NASA_Kim Shiflett

S81-30843 (14 April 1981) --- Astronaut John W. Young, STS-1 commander, egresses the space shuttle orbiter Columbia following her successful landing on Rogers dry lake bed on southern California?s Edwards Air Force Base. Approaching the crew member at right is Dr. Craig L. Fischer, head of the medical operations branch at Johnson Space Center. Still inside the spacecraft is Robert L. Crippen, STS-1 pilot. Photo credit: NASA