Glenn Says Gingrich Moon Colony Plan `Optimistic'
Jan. 27 (Bloomberg) -- John Glenn, the first U.S.
astronaut to orbit the Earth, talks with Bloomberg's Mark
Niquette about Republican presidential candidate Newt
Gingrich's goal to establish a permanent moon base by 2020 if elected.
Glenn, a former Democratic senator, also discusses the U.S. space program and the 50th anniversary of his Friendship 7 orbital flight on Feb. 20, 1962.