MHC's Ackmann Speaks on WBUR

MHC's Martha Ackmann is the author of The Mercury 13, the story of American women who secretly trained to be astronauts in the 1960s.

On the 50th anniversary of women's first space flight, author Martha Ackmann talks about the Mercury 13 on WBUR's On Point. (Cue to minute 29.)