Former astronaut Buzz Aldrin spoke to students at UAA's ANSEP building on Friday, January 25, 2013. Students from Mat-Su middle schools, Bethel and Nome high schools and UAF in Fairbanks are in Anchorage for the program. Aldrin is the special guest at the Alaska Native Science & Engineering Program celebration at the Dena'ina Center Friday evening. Aldrin was the second person to walk on the Moon. The Lepquinm Gumilgit Gagoadim Tsimshian dance group performed at the talk. BOB HALLINEN — Anchorage Daily News Buy Photo