NASA astronaut Randy Bresnik signs the guest book before touring the Home of the Commandants of the Marine Corps, Monday, May 7, 2018 in Washington. Photo Credit: (NASA/Aubrey Gemignani)
NASA astronaut Randy Bresnik signs the guest book before touring the Home of the Commandants of the Marine Corps, Monday, May 7, 2018 in Washington. Photo Credit: (NASA/Aubrey Gemignani)