On June 3, 1965, astronaut Ed White became the first American to walk in space. Upon the conclusion of his spacewalk, he said, “I’m coming back in… and it’s the saddest moment of my life.” He later died with fellow astronauts Virgil Grissom and Roger Chaffee during prelaunch testing for the first planned Apollo mission at Cape Canaveral. He posthumously received the Congressional Space Medal of Honor.