Glenn chats with space station to mark anniversary

In this Jan. 25, 2012 photo, Sen. John Glenn speaks during an interview at his office in Columbus, Ohio. Glenn was the first American to orbit Earth, piloting Friendship 7 around the planet three times in 1962. Glenn, as a U.S. senator at age 77, also became the oldest person in space by orbiting Earth with six astronauts aboard shuttle Discovery in 1998. (AP Photo/Jay LaPrete)

February 20, 2012 12:02:05 PM PST
John Glenn says being able to speak live with the International Space Station was a "great surprise" as he celebrated the 50th anniversary of his historic spaceflight.