“Chris was one of the key members of the team who helped our nation send a man into space and to the moon, his contribution cannot be overestimated,” the statement says.
Brydenstein expressed his condolences to the relatives and friends of Kraft.
“America today really lost its national treasure,” he said.
In May 2018, the American astronaut Alan Bean, who was the fourth person to step on the surface of the moon, died in his 87th year of life.