Apollo 11 astronaut Buzz Aldrin returned to the Capitol on Thursday to discuss the future space travel with members of Congress.

Aldrin has been a frequent visitor in Washington over the past few months arguing for bold new plans for the country's space program.

The 79-year-old pioneer stopped in to see Rep. Gabrielle Giffords (D-Ariz.) who is chairwoman of the House Science and Technology Space and Aeronautics Subcommittee.

Giffords tweeted:

http://twitpic.com/h7a8s - Apollo Astronaut Buzz Aldrin visited me this a.m. Frank discussion on the future of space w/ the 2nd man to walk on moon

The second-term Democrat previously received a visit from shuttle commander Michael Collins in July. Giffords is married to another NASA shuttle commander, Mark Kelly.

Here is a photo of Giffords and Buzz:

Buzz Aldrin