Which husband-and-wife team was convicted of passing information about the atomic bomb to the Soviets before being executed?

Julius and Ethel Rosenberg were convicted of conspiring to pass atomic-bomb secrets to the Soviet Union. They were executed in 1953. The Greenglasses were involved as witnesses in the case, while Alger Hiss was not part of a husband-and-wife team.

AI-written and checked against the verified answer.