EditorialNeil Armstrong greets Eugene Cernan prior to a House Science, Space, and Technology Committee hearing in Washington, District of Columbia, United States - 22 Sep 2011
EditorialNeil Armstrong and Eugene Cernan testify before a House Science, Space, and Technology Committee hearing in Washington, District of Columbia, United States - 22 Sep 2011
EditorialEugene Cernan testifies before a House Science, Space, and Technology Committee hearing in Washington, District of Columbia, United States - 22 Sep 2011