Apollo 8 astronaut wives Valerie Anders (left) and Susan Borman are ecstatic to finally hear their husbands voices from space in 1968. The mission was exciting for all the firsts: first to use the giant Saturn V rocket; first crewed spacecraft to leave Earth orbit, reach the Earth’s Moon, orbit it (and endure the broadcast blackout while the spacecraft passed behind the dark side of the Moon) and return safely to Earth. For all these reasons it was extremely stressful for the wives at home.